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6 September, 00:01

A stunt pilot weighing 0.70 kN performs a vertical circular dive of radius 0.80 km. At the bottom of the dive, the pilot has a speed of 0.20 km/s which at that instant is notchanging. What force does the plane exert on the pilot?

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  1. 6 September, 00:19
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    Force plane exert on pilot = 4270 N

    Explanation:

    first convert radius and speed to ms

    using formula from force we know that

    mass = weight / gravity = 700 N / 9.8N/kg = 71.4 kg

    Fc = N-mg

    N = Fc + mg As Fc = mv²/R

    N = mv²/R + mg

    taking m common

    N = m (v²/R + g)

    = 71.4 ((200) ² / 800 + 9.8)

    Force = 4270 N
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