Your pet hamster sits on a record player that has constant angular speed. If the hamster moves to a point twice as far from the center, then its linear speed
A)doubles.
B)halves.
C)remains the same.

Question

Quizplus · Accepted Answer

The linear speed of an object moving in a circle is directly proportional to the radius of the circle and the angular speed. Since the record player has constant angular speed, the linear speed of the hamster is directly proportional to its distance from the center. Moving to a point twice as far from the center doubles the radius, which means the linear speed also doubles. Therefore, the correct answer is A) doubles.

Your Pet Hamster Sits on a Record Player That Has