A golf ball is struck with a velocity of vA = 70 ft/s as shown. Part A Determine the speed at which the ball strikes the ground at B. Express your answer to three significant figures and include the appropriate units. You did not open hints for this part. ANSWER: vB = Part B Determine the time of flight from A to B. Express your answer to three significant figures and include the appropriate units. You did not open hints for this part. ANSWER: t =