pg. 188 (#9-11) Conservation of Momentum

A 4.00 kg model rocket is launched, shooting 50.0 g of burned fuel from its exhaust at an average velocity of 625 m/s. What is the velocity of the rocket after the fuel ha s burned? (Ignore effects of gravity and air resistance)

A thread holds two carts together on a frictionless surface. A compressed spring acts upon the carts. After the thread is burned, the 1.5 kg cart moves with a velocity of 27 cm/s to the left. What is the velocity of the 4.5 kg cart?

Two campers dock a canoe. One camper steps onto the dock. This camper has a mass of 80.0 kg and moves forward at 4.0 m/s. With what speed and direction do the canoe and the other camper move if their combined mass is 110 kg?

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