Question

Use the image to answer the question.

An illustration shows a person running after a rabbit. The person weighs 60 kilograms, and the rabbit weighs 4 kilograms. The speed of both is 5 meters per second.

A wildlife keeper is trying to catch an escaping rabbit. Who has the greater kinetic energy, the rabbit or the wildlife keeper?

(1 point)
Responses

The rabbit because it has less mass.
The rabbit because it has less mass.

The wildlife keeper because they have a greater mass.
The wildlife keeper because they have a greater mass.

The wildlife keeper because they speed up and catch the rabbit.
The wildlife keeper because they speed up and catch the rabbit.

Neither one because they are moving at the same speed.

Answer 1

The wildlife keeper because they have a greater mass.

KE = 1/2 m v^2. Keeper: 1/2(60)(5^2) = 750 J. Rabbit: 1/2(4)(5^2) = 50 J. The keeper has much more kinetic energy.