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A small ball ( mass = 0,1 kg ) tied to a non-stretchable thread moves over a smooth horizontal plane. The other end of the thread is being drawn into a hole O with a 0,8 Newton force so that the ball moves with a constant radius 0,4 m And then Harry pull the thread with a constant force 4 Newton so that the ball moves come near to hole O until its radius is 0,1 m a. Work done by Harry = ..... J b. Work done by that ball = ...... J Thank you very much


A small ball (mass = 0,1 kg) tied to a non-stretchable thread moves over a smooth horizontal plane. The other end of the thread is being drawn into a hole O with a 0,8 Newton force so that the ball moves with a constant radius 0,4 m
And then Harry pull the thread with a constant force 4 Newton so that the ball moves come near to hole O until its radius is 0,1 m

a. Work done by Harry = ..... J
b. Work done by that ball = ...... J

Thank you very much


Grade:upto college level

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