An astronaut candidate with a mass of 72 kg is tested in a centrifuge with a radius of 10...

An astronaut candidate with a mass of 72 kg is tested in a centrifuge with a radius of 10 m. The centrifuge rotates in the horizontal plane. It starts from rest at lime t = 0 and has a constant angular acceleration of 0.2 rad/s2. Determine the magnitude of the horizontal force exerted on him by the centrifuge

(a) at t = 0

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(b) at t = 10 s.