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A 1.50 kg , horizontal, uniform tray is attached to a vertical ideal spring of force...

A 1.50 kg , horizontal, uniform tray is attached to a vertical ideal spring of force constant 190 N/m and a 260 g metal ball is in the tray. The spring is below the tray, so it can oscillate up-and-down. The tray is then pushed down 14.7 cm below its equilibrium point (call this point A) and released from rest. a. How high above point A will the tray be when the metal ball leaves the tray? (Hint: This does not occur when the ball and tray reach their maximum speeds.) b. How much time elapses between releasing the system at point A and the ball leaving the tray? c. How fast is the ball moving just as it leaves the tray?

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