A block of mass m = 3.6 kg, moving on a frictionless surface with a speed vi=9.3m/s makes a sudden perfectly elastic collision with a stationary block of mass M, as shown in the figure. Just after the collision, the 3.6-kg block recoils with a speed of vf=2.7m/s What is the speed V of the other block?

A steel ball of mass 0.850 kg is fastened to a cord that is 65.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal, as shown in the figure. At the bottom of its path, the ball strikes a 3.30 kg steel block initially at rest on a frictionless surface. The collision is elastic. Find (a) the speed of the ball and (b) the speed of the block, both just after the collision. (a) Number (b) Numbe i i Unit Unit

A 4.0kg block is traveling with an initial velocity of 10.0m/s [E]. It collides with a 6.0kg block that is traveling 1.0 m/s [W]. After the partially inelastic collision, the 6.0kg block is measured traveling 5.0m/s [E]. What is the velocity of the 4.0kg block after the collision?

A 49 kg boy on roller skates moves with a speed of 4 m/s. He runs into a 41 kg girl on skates. Assuming they cling together after the collision, what is their speed (in m/s)? (Assume the girl is initially at rest.) m/s

A 5.3 kg sphere makes a perfectly inelastic collision with a second sphere initially at rest (they stick together after the collision). The composite system moves with a speed equal to one third the original speed of the 5.3 kg sphere. What is the mass of the second sphere?

A steel ball of mass 0.710 kg is fastened to a cord that is 89.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal, as shown in the figure. At the bottom of its path, the ball strikes a 2.00 kg steel block initially at rest on a frictionless surface. The collision is elastic. Find (a) the speed of the ball and (b) the speed of the block, both just after the collision. (a) Number i Unit (b) Number i Unit

A steel ball of mass 0.740 kg is fastened to a cord that is 88.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal, as shown in the figure. At the bottom of its path, the ball strikes a 3.10 kg steel block initially at rest on a frictionless surface. The collision is elastic. Find (a) the speed of the ball and (b) the speed of the block, both just after the collision.

A ballistic pendulum has a mass of 1.00 kg, it hangs from a string at rest when a bullet, mass 100.0 g is fired into it. The bullets speed is 50 m/s when it hits a pendulum. The two rise together immediately following the perfectly inelastic collision. Use the conservation of momentum and energy to determine how high they rise after the Impact.

A bullet of mass 100 g is fired horizontally into a block of wood of mass 2 kg and suspended like a ballistic pendulum.  The bullet sticks in the block and the impact causes the block to swing so that its center of gravity rises 0.1 m.  Find the velocity of the bullet just before the impact.  What is the magnitude of the impulse and the force experienced by the bullet if the collision time is 0.1 s?

A railroad car of mass 2.85 x 104 kg moving at 3.10 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? m/s (b) How much kinetic energy is lost in the collision?