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31 May, 13:19

How much horizontal force f must a sprinter of mass 47 kg exert on the starting blocks to produce this acceleration? express your answer in newtons using two significant figures?

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  1. 31 May, 14:49
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    This statement is missing the first sentence which states the horizontal acceleration.

    I found that the desired horizontal acceleration is 15.0 m/s^2.

    Now, you must use second law of Newton to calculate the force.

    Second Law of Newton: F = m * a

    => F = 47 kg * 15 m/s^2 = 705 N

    Answer: 705 N
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