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    • Thread Starter

    An aircraft moves in a vertical circle with radius 100m at a constant speed. Find the acceleration. Find the speed such that weightlessness is experienced at the top of the circle.
    I'm stuck on this question. I thought there'd be no tangential acceleration or v would change. I tried Conservation of Energy and resolving radially but couldn't get anywhere with that either.
    Could someone give a hint to put me in the right direction?

    You could try resolving radially at the top, and since weightlessness is experienced, the upwards force acting on the plane must cancel out the weight.

    I think you have to use the conservation of energy with vertical circles...
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