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please explain neatly and show formulas thank you

Question 1 Your answer is partially correct. Try again. The figure shows a thin rod, of length L = 1.50 m and negligible mass, that can p ot about one end to rotate in a vertical circle. A ea ball of mass m 15. C s attached to the other end. The rod is pulled aside to angle eo = 6.80° and released with initial velocity v 0-0. As the ball descends to its lowest point, (a) how much work does the gravitational force do on it and (b) what is the change in the gravitational potential energy of the ball-Earth system? (c) If the gravitational potential energy is taken to be zero at the lowest point, what is its value just as the ball is released? (a) Number1.6 Units J

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Answer #1

a) wot done 1.55 J 553 n E or 녔 11. 5 5 J potential energy at point of release***************************************************************************************************
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