Energy Momentum Assignment A man stands on a cart. The cart does not move. The total mass of the man and cart is 160 kg. The man throws an 8.0-kg rock horizontally. The speed of the rock equals 5.0 m/s relative to the ground. a. Find the total kinetic energy of the man and cart. b. Find the work done by the man. Point out the laws of physics used in your solution. (6T, 2C) A bullet flies horizontally at a speed of 40.0 m/s, hits a wooden block suspended from a 4.0-m string, and gets stuck in the block. Find the angle of deviation of the string. The mass of the bullet is 20.0 g, the mass of the block is 5.0 kg. Point out the laws of physics used in your solution. (4T, 2C) A bullet flies horizontally, hits a wooden block suspended from a 1.0-m string, and gets stuck in the block. The angle of deviation of the string equals 11. The mass of the bullet is 1000 times smaller than the mass of the block. What is the initial speed of the bullet? Point out the laws of physics used in your solution. (4T, 2C) Two balls of the same radius are suspended from two strings. The length of each string is 0.50 m, the mass of the left ball is 0.10 kg, while the mass of the right ball is 0.30 kg. The left ball is deviated 90 to the left so that its string becomes horizontal. Then the ball is released and experiences a perfectly elastic collision with the right ball. What is the maximum height reached by the right ball? Point out the laws of physics used in your solution. (6T, 2C)