Find the mechanical energy lost due to friction

Reference no: EM13336505

a 25 kg child on a 2m long swing is released from rest when the ropes of the swing make an angle of 25 degrees with the vertical

a.) neglecting friction, find the childs speed at the lowest position, and

b.) if the actual speed of the child at the lowest position is 2 m/s, what is the mechanical energy lost due to friction?

Reference no: EM13336505

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