Can anyone tell me how to do Q 41 and 42..
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Can anyone tell me how to do Q 41 and 42..
Q41 You should equate kinetic energy to potential energy so as the ball obtain enough kinetic energy to climb the largest circle (D=6R):Quote:
Originally Posted by siddscool19
Q42 If mass is distributed equally along the length, then after swap potential energy of rope with mass m is decreased by mgl and of rope with mass 3m is increased by 3mgl.
41. The minimum velocity (assuming negligable friction) corresponds to a KE equal to the potential energy of the particle when at the higest point of the tube.Quote:
Originally Posted by siddscool19
CB
42. You have raised a mass of 3m through l and lowered a mass of m through a distance l, so the potential energy change is the same as though you had raised a mass of 2m through a distance l.Quote:
Originally Posted by siddscool19
CB