T. A PLAYGROUND SLIDE IS 2M h = 2 m TALL. A) CALCULATE THE GRAVITATIONAL POTENTIAL ENERGY OF A 25 KG CHILD AT THE TOP OF THE SLIDE. B) IGNORING FRICTION, WHAT WOULD HER SPEED BE AT THE BOTTOM OF THE SLIDE? C) IF SHE HAD A SPEED OF ONLY 4M/S AT THE BOTTOM OF THE SLIDE, CALCULATE THE WORK DONE BY FRICTION.

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