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August 28, 2014

Homework Help: physics

Posted by hilary on Wednesday, January 6, 2010 at 11:01pm.

A ball attached to the end of a string is whirled on a horizontal circle at constant speed.

Consider the linear momentum, total energy, and kinetic energy of the ball throughout its motion.

Which of the following statements is true?

Both linear momentum and kinetic energy are not constant
Both total energy and linear momentum are constant
Linear momentum is constant but energy is not constant
Linear momentum is not constant but total energy is constant
Both total energy and linear momentum are not constant

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