Kinetic & Potential Energy

What is the kinetic energy (KE) of a 0.06kg tennis ball traveling at a speed of 150m/s?

Mathematical Equivalence

ON

A boulder with a mass of 2,500kg rests on a ledge 200m above the ground. What is the boulder's gravitational potential energy (GPE)?

What is the gravitational potential energy (GPE) of a 5.0kg object located 2.0m above the ground?

A student walks to school at a speed of 1.2m/s. If the student's mass is 53kg, what is the student's kinetic energy (KE)?

Mathematical Equivalence

ON

A 5.6kg bowling ball rolls down the lane at 3.0m/s. What is the bowling ball's kinetic energy (KE)?

Mathematical Equivalence

ON

The diagram shows three points on a roller coaster track. A car starts from rest at point X and travels along the track. Assume friction is negligible.

a. Identify whether the car’s gravitational potential energy increases, decreases, or stays the same as the car moves from point X to point Y.

b. Identify whether the car’s kinetic energy increases, decreases, or stays the same as the car moves from point Y to point Z. The car has a mass of 600 kg.

c. Calculate the gravitational potential energy of the car at its maximum height.

d. Calculate the maximum kinetic energy of the car.

Answer explanation

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