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A aeroplane with a mass of 9940 kg completes a vertical loop of radius 155m/s. What normal force does the airplane seat exert on the 92 kg pilot at the top of the loop and at the bottom of the loop?

  • need both radius and speed, check what you wrote -

    We need the centripetal acceleration
    Ac = v^2/r
    you only gave one, the speed I think

    at the top
    force on seat = m (v^2/r - g)
    at the bottom
    m (v^2/r + g)

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