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.

option A

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

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