A ball is attached to a horizontal cord of length L whose other end is fixed, Fig. 6-41.Figure 6-41(a) If the ball is released, what will be its speed at the lowest point of its path? (Answer using g for acceleration due to gravity and L as necessary.)(b) A peg is located a distance h directly below the point of attachment of the cord. If h = 0.70 L, what will be the speed of the ball when it reaches the top of its circular path about the peg?
