1The figure shows the position of a small ball being shot straight up by a spring. Each black dot represents the position of the ball at a specific time. The time interval between each successive black dot is constant. The spring, with the ball atop, was initially compressed to position Pand released. The ball left the spring at position Qand reaches its highest point at position R.Assuming that air resistance can be neglected, which statement is true? 1.The ball has its maximum kinetic energy at point R2.The acceleration of the ball is constant once the ball leaves the spring3.The ball has its maximum kinetic energy at point
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