1. A 1 kq body moving forward at 5 m/'s strikes a second body at rest. After collision the 1 kg body reverses its direction and move at 1 m/e while the second body moves forward at call 2 8/0. What is the mass of the second body? What is collision Type Show proofl When a car of mass 2000 kq moving at 9 /s collides head on with a second car of mass 1500 kq, both come to a halt at the Cok point of collision. What was the velocity of the second car before the collision? J. What average force does a bat exert on a 0.1 kq ball when the batter completely reverses the notion of the pitched ball? I (AP ) (Assume the speed of the ball before and after collision to be 10 m/e and the time of contact to be 0. 04 8. ) A rifle weighing 30 N Fires a 50g bullet at a velocity of 800 my, what is the recoil velocity and direction of the rifle 1. A 50 kg person jumps from a window ledge 4 a above the ground to the pavement. What force did the ground exert on his legs if he was brought to rent in 0.06 6? (6 73150) Combo 2. An 85 gram bullet is shot at a 3 kg piece of wood at rest on the end of a counter 1.2 a high. If the bullet becomes embedded in the block and they land 5 a from the counter, what was the initial speed of the bullet at impact? (/p = 367m/5) J. When a bullet of mass 10 grans strikes a ballistic pendulum of mass 2 kq the center of mass of the pendulum is observed to rise a distance of 10 ca. The bullet remains embedded in the pendulum. Calculate the velocity of the bullet 4. A bullet of mass 2 grams traveling in a horizontal direction with a velocity of 500 m/s is fired into a wooden block with a mass of 1 kg, initially at rest on a level surface. The bullet passes through the block and emerges with its velocity reduced to 100 m/s. The block slides through a distance of 20 en before coming to rest. what is the coefficient of sliding friction between the block and the surface? / As, 16 5. A rifle bullet of mass 10 grams strikes and embeds itself in a block of mass 990 grams which rests on a horizontal frictionless surface and is attached to a spring. The impact compresses the spring 10 cm. If k=100 N/m, find the initial velocity of the bullet. (Ng =/40m/ ) 6. 100 grams of putty, traveling with a velocity of 700 cm/s, collides with and sticks to a block of mass 900 grams. The block rests on a table and is attached to a spring originally under no compression. The coefficient of friction is 0.25 and k-98 N/m. compression of the spring? (x: .05m) What is the maximum