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Centripetal force, illustration

Centripetal force, illustration

C042/4396

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Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

Centripetal force, illustration. A hand spins a ball in a circle on the end of a string, demonstrating centripetal force. Centripetal force is a force that makes a body follow a curved path. Newton's First Law states that an object will continue in a state of rest or uniform motion in a straight line unless acted upon by a force. In this demonstration the hand exerts a force on the string which pulls the ball towards the centre. This centripetal force prevents the ball from continuing in a straight line. The force required is equal to the product of the ball's mass (m) and the square of its velocity (v), divided by the radius of its path (r).

Release details

Model release not required. Property release not required.

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