A 210 kg child on a 100 m long swing is released from rest


A 21.0 kg child on a 1.00 m long swing is released from rest when theropes of the swing make an angle of 33.0° with thevertical.

a) Neglecting friction, find the child's speedat the lowest position.
b) If the speed of the child at the lowest position is1.60 m/s, what is the mechanical energy lost due to friction?

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Physics: A 210 kg child on a 100 m long swing is released from rest
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