Acarpet which is 7 meters long is completely rolled up. when meters have been unrolled, the force required to unroll it further is how much work is done unrolling the entire carpet? your answer must include the correct units.

Which statement is true about an object that is moving in a circular motion due to centripetal force, f, when the radius of its circular motion is doubled? the new force then becomes equal to 2f the new force then becomes equal to f the new force then becomes equal to f/2 the new force then becomes equal to f2 the new force then becomes equal to 1/f