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22 August, 17:33

A motorcycle moving at 13.2 m/s increases in speed to 25.7 m/s over a period of 8.6 s. If the motorcycle's mass is 352 kg, what net force in Newtons acts on the motorcycle?

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  1. 22 August, 20:38
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    510.4 N

    Explanation:

    u = 13.2 m / s, v = 25.7 m/s, t = 8.6 s, m = 352 kg

    Use first equation of motion

    v = u + a t

    a = (25.7 - 13.2) / 8.6 = 1.45 m/s^2

    Use Newton's second law

    F = m a = 352 x 1.45 = 510.4 N
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