The figure below shows a person's speed as he/she does one full chin-up. The motion is...

 

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The figure below shows a person's speed as he/she does one full chin-up. The motion is vertical and the mass of the person is 59.2 kg. What is the magnitude of the force exerted by the chin-up bar on the person at the following times. Give your answers in N. Speed (m/s) 0.4 0.3 0.2 0.1 -0.1 t = 0 -0.2 -0.3 -0.4 Av 0.5 1 1.5 2 2.5 Time (s) 3 3.5 The figure below shows a person's speed as he/she does one full chin-up. The motion is vertical and the mass of the person is 59.2 kg. What is the magnitude of the force exerted by the chin-up bar on the person at the following times. Give your answers in N. Speed (m/s) 0.4 0.3 0.2 0.1 -0.1 t = 0 -0.2 -0.3 -0.4 Av 0.5 1 1.5 2 2.5 Time (s) 3 3.5

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The force is given by the formula where m is the mass of the body and a is the acceleration of the b... View the full answer