Answer these 6 questions.Also give kinetic energy change.

5. What force acting for 0.05 s is needed to give a 160 gm cricket ball a speed of 10 m s-1?10. A batsman receives a cricket ball of mass 160 gm at a speed of 6 m S"1 and returns it straight back to the bowler at 12 m 51. What impulse does the bat give to the ball? 15. A truck originally at rest is pushed by an engine with a force of 1500 N for 20 s. After this time the engine breaks away and the truck comes to rest 80 s later. If the resistance remains constant throughout the motion, find how large it is.5. A stone of mass 90 gm is skidding across the ice with a speed of 4 m s-1. It hits a stationary stone of mass 120 gm and stops dead after the impact. With what speed does the other stone start to move?ll..The recoiling parts of a gun have a mass of 150 kg. A shot of mass 2 kg IS red horizontally with a speed of 750 111 3'1. Find the speed of the recoil. 15. A truck of 1113.33 225 kg is, moving at 3 m S\". A man of mass 75 kg runs straight towards it and meets it head-on at a speed of 6 m s". If the man jumps onto the truck when he meets it, how fast and in which direction wilL the truck be moving afterwards? - r