The maximum speed of a child on a swing is 5.90 m/s. The child’s height above...

The maximum speed of a child on a swing is 5.90 m/s. The child’s height above the ground is 0.790 m at the lowest point in his motion. How high above the ground is he at his highest point?

Solutions

Expert Solution

The maximum speed of the child,

Height of the child at the lowest position,

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How high above the ground is he at his highest point?

The child on the swing will have the maximum velocity at the lowest point in the trajectory.

At the highest point, all the kinetic energy will be converted into potential energy.

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Consider the lowest point and highest point in the trajectory.

Energy is conserved

So when the child reaches the highest point, kinetic energy and potential energy at the lowest point will be converted into potential energy at the highest point.

Cancel mass m

ANSWER:

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genius_generous answered 4 months ago

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