**Unit 5: Work, Energy and
Power**

**Problem Set B**

**Problem 5: **

A bowling ball is attached by a 2.55-meter cable to the ceiling. It has 10.5 Joules of potential energy when held at a height of 4 feet above the ground. It is released from rest allowed to swing as a pendulum. Determine its kinetic energy (in Joules) when it is at a height of 1 foot above the ground.

Work and energy principles and mathematical relationships can be reviewed on the Set B Overview page.

Further information about energy conservation situations is available online at The Physics Classroom.

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