Question

Your pet hamster sits on a record player whose angular speed is constant. If he moves to a point twice as far from the center, then his linear speed

A) doubles.
B) halves.
C) remains the same.

Answer 1

option A

Step-by-step explanation:

given,

angular speed is constant

initial distance = r

final distance (r')= 2 r

initial linear velocity = v

final linear velocity = v'

we know,

v = r ω......................(1)

where r is the distance

ω is the angular speed

now,

v' = r' ω

v' = 2 r ω

v' = 2 v

hence, the linear velocity doubles.

The correct answer is option A