1) Which has the larger linear momentum: a 2,000-kg houseboat going 5 m/s or a 600-kg speedboat going 20 m/s?

2) What is the kinetic energy of a 56 kg mass moving with a speed of 3 m/s?

3) An athlete in training can run up a flight of stairs in 10 seconds. If he weighs 800 N and climbs a total height of 4.0 m, how much power does this require?

4) A 70 kg person bungee jumps from a 200 meter tower. What would be the person's speed right before they almost hit the ground if the bungee cord were not there to slow them down and keep them from hitting the ground? Ignore air resistance

5) The specific heat capacity of silver is 230 J/(kgC). How much heat energy (in Joules) is needed to raise the temperature of a 30-kg piece of silver from 0C to 100C.