# A 39 kg child on a 2 m long swing is released from rest when the swing supports make an angle of 25 ◦ with the vertical. 2 The acceleration of gravity is 9.8 m/s . If the speed of the child at the lowest position is 1.71411 m/s, what is the mechani- cal energy dissipated by the various resistive forces (e.g. friction, etc.)? Answer in units of J.

A 39 kg child on a 2 m long swing is released from rest when the swing

supports make an angle of 25 ◦ with the vertical. 2

The acceleration of gravity is 9.8 m/s .

If the speed of the child at the lowest position is 1.71411 m/s, what is the mechani- cal energy dissipated by the various resistive forces (e.g. friction, etc.)?

Answer in units of J.

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The post A 39 kg child on a 2 m long swing is released from rest when the swing supports make an angle of 25 ◦ with the vertical. 2 The acceleration of gravity is 9.8 m/s . If the speed of the child at the lowest position is 1.71411 m/s, what is the mechani- cal energy dissipated by the various resistive forces (e.g. friction, etc.)? Answer in units of J. appeared first on Superb Professors.