a bike is moving with a velocity of 90km/hr.after applying break it stops in 5 sec. calculate the force applied by brakes .mass of motercyc

Question

a bike is moving with a velocity of 90km/hr.after applying break it stops in 5 sec. calculate the force applied by brakes .mass of motercycle and rides is 200 kg

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Thái Dương 2 months 2021-07-29T10:22:54+00:00 1 Answers 3 views 0

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    2021-07-29T10:24:14+00:00

    Explanation:

    initial velocity(u) = 90 km/s = 25 m/s

    time (t) = 5 sec

    mass (m) = 200 kg 

    final velocity (v) = 0 m/s

    v = u + at 

    0 = 25 + a * 5

    -25 = 5 a

    -5 = a

    Therefore acceleration = -5m/s²

    Force = mass * acceleration 

    F = 200*-5

    F = -1000 N

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