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1 April, 01:19

A 2.50 * 105 W motor is used for 26.4 s to pull a boat straight toward shore. How far does the boat move toward shore if a force of 4.20 * 104 N is applied by the motor?

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  1. 1 April, 01:45
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    The power of the motor is

    2.50x10⁵ W

    or

    2.50x10⁵ N m/s

    The time it takes to pull the boat is

    26.4 s

    The force applied is

    4.20x10⁴ N

    The distance traveled by the boat is

    2.50x10⁵ N m / s (26.4 s) / (4.20x10⁴ N)

    = 157.14 m
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