A father fashions a swing for his children out of a long rope that he fastens to the limb of a tall tree. As one of the children swings from this rope that is 5.80 m long, his tangential speed at the bottom of the swing is 8.00 m/s. (a) What is the centripetal acceleration, in m/s2, of the child at the bottom of the swing? m/s2 (b) What provides the centripetal force that keeps the child moving in an arc? the weight of the child gravitational acceleration the tension in the rope the height of the tree