A ball of mass 522g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x=1.09m from the end of the track after falling a vertical distance h2=1.10m from the end of the track.  a)At what height above the ground does the ball start to move? b) what is the speed of the ball when it leaves the track? c)what is the speed of the ball when it hits the ground?

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