1. A 50.0 kg person accelerated from rest to 9.40 m/s. Determine the work that must be done to accelerate this person. 2. Two objects moving in opposite directions collide and bounce off of each other. Identify the type of collision that has taken place and the equations that you could utilize to analyze the collision. 3. A car slams on its brakes, loudly screeching to a halt on a level surface. Describe the flow of energy in the system and explain whether we can use the conservation of mechanical energy to analyze this situation. 4. A baseball player strikes a 0.145 kg ball which reaches a height of 115 m, determine the velocity it left the bat at if contact occurred at 1.5 m off the ground.

1. A 50.0 kg person accelerated from rest to 9.40 m/s. Determine the work that must be done to accelerate this person. 2. Two objects moving in opposite directions collide and bounce off of each other. Identify the type of collision that has taken place and the equations that you could utilize to analyze the collision. 3. A car slams on its brakes, loudly screeching to a halt on a level surface. Describe the flow of energy in the system and explain whether we can use the conservation of mechanical energy to analyze this situation. 4. A baseball player strikes a 0.145 kg ball which reaches a height of 115 m, determine the velocity it left the bat at if contact occurred at 1.5 m off the ground.