Jason, with mass 80kg, does a cannonball into a pool. If he jumps with an initial downward velocity of 5 m/s, what is his kinetic energy after 1 second? a 9000J b 200000J c 300J d 20000J e 600J

Please use the information in the picture to answer the question: How fast must it have leapt from the water to reach a such a great height and speed. If you stand at the bow where you can reach up to a height of 3m above the water. You can only catch a fish if it is traveling under 8.5m/s when it reaches you. Will you be able to catch the fish? Find the speed of the fish at your location. Hint: use energy conservation.

A car with a mass of 2000 kg starts at rest from a point 30 m above the ground. At point B, it is 15 m above the ground. If the initial kinetic energy was zero and the work done against friction between the starting point and point B is 20 000 J, what is the kinetic energy of the car at point B? (g= 10 m/s2).

The energy needed to increase the speed of a certain car from 22 m/s to 54 m/s is 2900 kJ. A) What is the mass of the car? B) At what speed is the cars kinetic energy equal to 1500 kJ? C) The car is driven up pikes Peak, an elevation gain of 5500 feet from the base. What is the change of potential energy of the car? give the answer in Joules.