1. A 0.11 kg bullet traveling at 1565 mph hits a 6.3 kg block of wood and stays in the wood. What is the velocity (speed) of the wood block immediately after the bullet hits it?
2. An aircraft with a weight of 8387 N accelerates from 0 to 100 m/s in 7.9 seconds, at which time the aircraft launches. What is the kinetic energy of the aircraft when the aircraft launches?
3. It takes an elevator 2.6 minutes to raise a vehicle with a weight of 4161 N from the floor to a height of 6 meters. What size (power) motor (in watts) does it take to do the job? Hint: this is a multiple step problem in which you must derive the variables needed to solve for problem in step one and then apply those values to the final solution of the problem. Watch your units.