As shown below, an object with a mass of 5 kg is moving at a speed of 10 m/s. Another object with a mass of 10 kg is moving at a speed of 5 m/s.

Question

COURSE TOOLS
5 kg
10 m/s
10 kg
5 m/s
Which of the objects has higher kinetic energy?
(1 point)
LESSON
FEEDBACK
• Both objects have zero kinetic energy.
• The objects have equal kinetic energy.
• The 5 kg object has higher kinetic energy.
• The 10 kg object has higher kinetic energy.

Answer 1

The formula for kinetic energy is KE = 1/2 * mass * speed^2.

Using this formula, we can calculate the kinetic energy for both objects:

For the object with a mass of 5 kg and a speed of 10 m/s: KE = 1/2 * 5 kg * (10 m/s)^2 = 250 J

For the object with a mass of 10 kg and a speed of 5 m/s: KE = 1/2 * 10 kg * (5 m/s)^2 = 125 J

Therefore, the object with a mass of 5 kg has higher kinetic energy.