Which of the following is the evidence to sho | vedclass

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(A) According to Newton's first law of motion,an object in motion will continue to move in a straight line at a constant speed unless acted upon by an

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revolution of the earth around the sun

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(A) According to Newton's first law of motion,an object in motion will continue to move in a straight line at a constant speed unless acted upon by an external force.Since the earth moves in a nearly circular orbit around the sun,its direction of motion is constantly changing at every point.$A$ change in direction implies a change in velocity,which constitutes acceleration.According to Newton's second law,acceleration requires a net force.Therefore,the revolution of the earth around the sun serves as evidence that a centripetal force (gravitational force) must be acting on the earth,directed towards the sun.

Which of the following is the evidence to show that there must be a force acting on the earth and directed towards the sun?

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