What is the childs total mechanical energy

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Reference no: EM1358928

Q. A 25 kg child on a 2.0 m swing is released from rest when the swing supports make an angle of 30.0 degrees with the vertical.

a) what is the maximum potential energy associated with the child

b) disregardign friction find the childs speed at the lowest position

c) what is the childs total mechanical energy?

d) if the speed of the child at lowest position is 2.00 m/s what is the change in the mechanical energy due to friction

Reference no: EM1358928

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