You are told 3 things...1. That there are two obiects with equal masses. 2. Both obiects are in motion. 3. One obiect has a greater kinetic enerav than the other. How is this possible?
• One object has a greater density then the other object.
• One object is blue and one object is red.
• One object has a greater volume than the other object.
• One object has a greater speed than the other object.
• One object has a greater speed than the other object.
A large truck and a small car are moving at the same speed, traveling up and down hills, and over bumpy roads. Which one has more kinetic energy? (1 point)
• The car has more kinetic energy because it moves fast down hills.
The car and truck have the same kinetic enerav.
• The truck has more kinetic energy because it has a greater mass.
• The truck has less kinetic energy because it has greater mass.
• The truck has more kinetic energy because it has a greater mass.
Which object has the greatest kinetic energy? (1 point)
• a red car mass of 500 kg moving at 3 m/s
O a yellow car with a mass of 500 kg moving at 12 m/s
• a green car with a mass of 500kg moving at 21 m/s
• a blue car with a mass of 500 kg moving at 30 m/s
• a blue car with a mass of 500 kg moving at 30 m/s
A skvdiver iumps out of a plane and begins to accelerate. His speed increases to 20 m/s, then 30 m/s. His acceleration slows until he reaches a constant speed of 50 m/s. Which statement correctly describes his kinetic energy during this time? (1 point)
• His kinetic energy increased while his speed increases, then it became constant.
• His kinetic energy would remain the same for the whole fall as long as he lost no mass.
• His kinetic energy increased quickly at first, then it increased at a constant rate.
• His kinetic energy was positive at first, but it decreased to zero when he stopped accelerating.