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Question

A 60-kg person on a merry-go round is travelling in a circle with a radius of 3 m at a speed of 6 m/s. What is the magnitude of the net force experienced by this person?

A
zero
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B
60N
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C
180N
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D
600N
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E
720N
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Solution

The correct option is E 720N

It is given that

Mass of person m=60Kg

The person is travelling in a circular path of radius r=3m

Velocity of person is v=6m/s

Centripetal acceleration is

ac=v2r

ac=623=12m/s2

Force

F=ma

=60×12

=720N



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