A 60.3 kg block is sliding along a frictionless surface with a speed of 20.2 m/s. It collides elastically with a second block of mass 12.9 kg. The second block is initially at rest. If this collision is one dimensional, what is the speed (in m/s) of the first block after the collision?

2 balls collide head-on in an elastic collision. One ball has a mass of 4.0 kg and an initial velocity of 6.5 m/s. The second ball has a mass of 2.0 kg and its initial velocity is unknown. AFTER the collision the heavier ball has a velocity of 2.5 m/s. What is the velocity of the lighter ball before and after the collision?

A 10.50-g bullet is fired into a stationary block of wood having mass m = 4.980 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.6090 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.)  m/s

A 5.65.6 kg block is travelling rightwards with speed 12.812.8 m/s. It collides with 3.23.2 kg which is travelling 22 m/s leftwards. After the collision, the 3.23.2 kg block travels 8.58.5 m/s rightwards. What is the velocity of the 5.65.6 kg block? Treat the leftward direction as the negative direction. Is this collision elastic or inelastic?

A soccer ball of 4.40925 (2 kilosg) pounds moves to the right a speed of 0.5 m/s.  Hits a 0.1102311 (0.05 kilosg) pounds tennis ball initially moving to the left at 2 m/s.  The collision is elastic and takes place in one dimension, along the x axis. What is the approximate final speed of the tennis ball, vf,g?

Two cars collide at an intersection. Car A�, with a mass of 1900 kgkg , is going from west to east, while car B�, of mass 1300 kgkg , is going from north to south at 14.0 m/sm/s . As a result of this collision, the two cars become enmeshed and move as one afterwards. In your role as an expert witness, you inspect the scene and determine that, after the collision, the enmeshed cars moved at an angle of 55.0 ∘∘ south of east from the point of impact.How fast were the enmeshed cars moving just after the collision?

A 13.8 kg block is sliding along a frictionless surface with a speed of 95.7 m/s. It collides with a second block of mass 93.1 kg. The second block is initially at rest. After the collision, the first block has rebounded with a speed of 26.1 m/s. If this collision is one dimensional, what is the speed in (m/s) of the second block after the collision?

A ball of mass 0.34 kg moving with a speed of 2.7 m/s to the right collides head on with a 0.24 kg ball at rest. If the collision is elastic, what is the speed and direction of each ball after collision?

If a cart of mass 350 grams moving at speed of 4.5 m/s hits an end-stop and rebounds at a speed of 3.2 m/s, what is the change in momentum, in units of kg.m/s?   A cart has the rubber bumper attached to the force sensor, and it moves and collides with an end-stop. In the collision, it suffers a change in momentum = 4.05 kg.m/s, and the time during which the collision takes place is 0.182 seconds. Calculate the average force applied on the cart by the bumper, in newtons.

A 7.6 kg block with a speed of 3.9 m/s collides with a 15.2 kg block that has a speed of 2.6 m/s in the same direction. After the collision, the 15.2 kg block is observed to be traveling in the original direction with a speed of 3.3 m/s. (a) What is the velocity of the 7.6 kg block immediately after the collision? (b) By how much does the total kinetic energy of the system of two blocks change because of the collision? (c) Suppose, instead, that the 15.2 kg block ends up with a speed of 5.2 m/s. What then is the change in the total kinetic energy?