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Physics 17 Online
OpenStudy (eepingheng):

How can I explain this ? use a Newton's law of motion to explain why a body moving with uniform speed in a circle must experience a resultant force.

OpenStudy (gebooors):

Newton law says: an object moves with constant speed and same direction, if there are no forces , or sum of forces are zero. So, if direction of motion changes, there is a force.

OpenStudy (eepingheng):

thanks !

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