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13 November, 09:45

A ball is hung from a rope, making a pendulum. When it is pulled 5° to the side, the restoring force is 1.0 N. What will be the magnitude of the restoring force if the ball is pulled 10° to the side?

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  1. 13 November, 10:03
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    restoring force is 2 N

    Explanation:

    given data

    angle pulled = 5°

    force = 1 N

    pulled = 10°

    to find out

    restoring force

    solution

    we know here force

    force = m*g*sinθ ... 1

    so here θ is very small so sinθ = θ

    1 = mg (5)

    mg = 1 / 5 ... 2

    and

    now for 10 degree

    we know here θ is small so sinθ = θ

    so from equation 1

    force = m*g*sinθ

    put equation 2 here

    force = 1/5 * 10

    force = 2 N

    so restoring force is 2 N
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