## Curriculum associates llc math answer key grade 8

A bullet of mass m and velocity v o is fired toward a block of mass 4m. The block is initially at rest on a friction less horizontal surface. The bullet penetrates the block and emerges with a velocity of v o /3 (a) Determine the final speed of the block. (b) Determine the loss in kinetic energy of the bullet.

A block of mass M with a semi circular track of radius R, rests on a horizontal frictionless surface. A uniform cylinder of radius r and mass m is released from rest at the top point A. The cylinder slips on the semicircular frictionless track.A uniform rod of length 6m and mass 10kg is lying on a horizontal surface. A uniform rod of length 6m and mass 10kg is lying on a horizontal surface ... A bullet shot from a rifle has mass of 10.0 g and travels to the right at 350 m/s. It strikes a target, a large bag of sand, penetrating it a distance of 34.0 cm. Find the magnitude and direction of the retarding force that slows and stops the bullet. A block of mass m rests on a rough horizontal surface (Coefficient of friction is u). When a bullet of mass m 2 strikes horizontally, and get embedded in it. the block moves a distance d before coming to rest. The initial velocity of the bullet is k 2ugd, then the value of k is! m2 (a) 2 (b) 3 (c) 4 (d) 5. >>. Class 11.

A wooden block of mass M resting on a friction less, horizontal surface is attached to a rigid rod of length ℓ and of negligible mass. The rod is pivoted at the other end. A bullet of mass m traveling parallel to the horizontal surface and perpendicular to the rod with speed v hits the block and becomes embedded in it.A 10-kg block on a rough horizontal surface is attached to a light spring (force constant = 1.4 kN/m). The block is pulled 8.0 cm to the right from its equilibrium position and released from rest. The frictional force between the block and surface has a magnitude of 30 N.Apr 07, 2021 · A 3.5 g bullet is fired horizontally at two blocks at rest on a frictionless tabletop. The bullet passes through the first block with mass of 1.20 kg. and embeds itself in the second, with a mass of 1.80 kg. Speeds of 0.630 m/s and 1.40 m/s, respectively, are thereby given to the blocks. Neglecting the mass removed from the fi 5 A bullet of mass 25 g moving with a velocity of 200 cm/s is stopped within 5 cm of the target. The average resistance offered by the target is. 6 A body of mass 5 kg is travelling with a uniform velocity of 2 m/s. Its momentum is. 9 A machine gun fires a bullet of mass 40 g with a velocity of 1200 ms-1. .

A wooden block of mass M rests on a horizontal surface. A bullet of mass m moving in thehorizontal direction strikes and gets embedded in it. The combined system covers a distance r on thesurface. A bullet of mass 10 g travelling horizontally with a velocity of 300 m/s strikes a block of wood of mass 290 g which rests on a rough horizontal floor. After impact the block and the bullet move together and come to rest when the block has travelled a distance of 15 m.Dec 24, 2018 · Mass of the bullet is 10 g. Velocity = 400 m/s. Mass of the wooden block is 2 kg. Length = 5 m. Let the velocity of the bullet and the block after the collision will be v 1 and v 2. The block rises 410 cm = 0.1 m. A/C Conservation of the energy of the block: PE at the maximum height = KE at the bottom of the block, m 2 gh = \(\frac{1}{2}m_2 ... A rifle bullet with mass 8.00 g and an initial horizontal velocity strikes and embeds itself in a block with mass 0.992 kg that rests on a frictionless surface and is attached to one end of an ideal spring. The other end of the spring is attached to the wall. The impact compresses the spring a maximum distance of 18.0 cm.A block of mass 22 kg is placed on a rough inclined surface and is connected to a 15 kg block which hangs vertically by means of a light inextensible string passing over a frictionless pulley, as shown in the diagram below. When the inclined surface is at an angle 9 to the horizontal, the 15 kg block moves downwards (as shown by

In m2 falls 1 m from rest in 1.2 seconds, find . physics. 8) A 6.0-kg block initially at rest is pulled to the right along a frictionless, horizontal surface by a constant horizontal force of 12 N. Use the work-kinetic energy theorem to find the block's speed after it has moved 3.0 m.A block of mass m is pulled along a rough horizontal floor by an applied force T as shown. the vertical component of the force exerted on the block by the floor is: mg - T sin ø A professor holds an eraser against a vertical chalkboard by pushing horizontally on it.May 04, 2016 · A 500 g block lies on a horizontal tabletop. The coefficient of kinetic friction between the block and the surface is 0.25. The block is connected by a massless string to the second block with a mass of 300 g. The string passes over a light frictionless pulley as shown above. The system is released from rest. A block of mass m rests on a rough horizontal surface (Coefficient of friction is` µ`). When a bullet of mass `m//2` strikes horizontally, and get embedded ... 1,5 m⋅s-1 down a rough plane inclined at 7 o ... Horizontal surface 1,5 m⋅s-1. ... The mass of each bullet is 0,03 kg. 1,5 m⋅s-1 down a rough plane inclined at 7 o ... Horizontal surface 1,5 m⋅s-1. ... The mass of each bullet is 0,03 kg. A block of mass . M. is kept on a rough horizontal surface. The coefficient of static friction between the block and the surface is p. The block is to be pulled by applying a force to it. What minimum force is needed to slide the block? In which direction should this force act? Solution 20 . Let minimum force required be P at an angle θ.

A 872 g wooden block is initially at rest on a rough horizontal surface when a 15.6 g bullet is fired horizontally into (but does not go through) it. After the impact, the block-bullet combination slides 6.50 m before coming to rest.Two blocks of 0.2 kg and 0.5 kg, which are placed 22 m apart on a rough horizontal surface (μ = 0.5), are acted upon by two forces of magnitude 3N each as shown in Fig. at time t=0.Then time t at which they collide with each other is:A block of mass M is moving to the left with initial speed V on a rough horizontal surface. The coefficient of kinetic friction between the block and the surface is μ. The block is moving against a constant wind that is blowing down on it at an angle θwith respect to the vertical and produces an effective blowing force of magnitude B.

A wooden block of mass M rests on a horizontal surface. A bullet of mass m moving in the horizontal direction strikes and gets embedded in it. The combined system covers a distance x on the surface. If the coefficient of friction between wood and the surface is u, the speed of the bullet at the time of striking the block is (where m is mass of ...A block with its mass M=200g is released from rest at a height of b=19 cm on a frictionless x=28° incline. It slides down the incline and then along a frictionless surface until it collides elastically with an block whose mass is 800 at rest d=1.5 m from . PHYSICS. A 5 kg block rests on a frictionless horizontal surface.A) 10 m/s. B) 2.5 m/s. C) 2.0 m/s. D) 0 m/s, since the collision is inelastic. c. A block of mass m = 4.4 kg, moving on frictionless surface with a speed makes a sudden perfectly elastic collision with a second block of mass M, as shown in the figure. The second block is originally at rest.Answer: Since the angle of friction is phi, the net force by surface on the block which is the resultant of normal contact force and friction will make an angle phi with normal which is vertical in this case. When we apply a minimum force the block is in limiting equilibrium and the resultant of...A wooden block with mass M = 3 kg is lying on a horizontal table. It is hit by a bullet with mass m = 5 g which moves horizontally. The bullet remains in the block after colliding with it. The block moves on the table a distance d = 25 cm. The coefficient of kinetic friction μ k = 0.2. Find the starting speed of the bullet.

Answer (1 of 3): What is the coefficient of friction if a wooden block of mass 1.6kg rest on a rough horizontal surface and the surface is 8N? You mean the mass is 1.6 kg (with a space). Not sure what the Heck you mean by saying the surface is "8N". Or even 8 N. That is unless you let me re-ty...A block of mass m rests on a rough horizontal surface (Coefficient of friction is` µ`). When a bullet of mass `m//2` strikes horizontally, and get embedded ... A block of mass M with a semi circular track of radius R, rests on a horizontal frictionless surface. A uniform cylinder of radius r and mass m is released from rest at the top point A. The cylinder slips on the semicircular frictionless track.A block of mass m rests on a rough horizontal surface (Coefficient of friction is` µ`). When a bullet of mass `m//2` strikes horizontally, and get embedded ... 10) A block of wood is sliding across a frictionless surface at a speed of 10 m/s. Suddenly, it hits a shaggy carpet, which supplies a constant frictional force of 50N that stops the block in 3 seconds. Find the mass of the block. 11) Three forces are applied to a 500 kg box that is sitting at rest on a surface. The first A bullet of mass 0.012 kg and horizontal speed 70 m s –1 strikes a block of wood of mass 0.4 kg and instantly comes to rest with respect to the block. The block is suspended from the ceiling by means of thin wires. Calculate the height to which the block rises. Also, estimate the amount of heat produced in the block.

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- A 96.0-g wooden block is initially at rest on a rough horizontal surface when a 11.4-g bullet is fired horizontally into (but does not go through) it. After the impact, the block-bullet combination slides 6.5 m before coming to . physics. a bullet of mass 120g is fired horizontally into a fixed wooden block with a speed of 20 m/s.
- May 04, 2016 · A 500 g block lies on a horizontal tabletop. The coefficient of kinetic friction between the block and the surface is 0.25. The block is connected by a massless string to the second block with a mass of 300 g. The string passes over a light frictionless pulley as shown above. The system is released from rest.
- 10) A block of wood is sliding across a frictionless surface at a speed of 10 m/s. Suddenly, it hits a shaggy carpet, which supplies a constant frictional force of 50N that stops the block in 3 seconds. Find the mass of the block. 11) Three forces are applied to a 500 kg box that is sitting at rest on a surface. The first