Can anyone tell me how to do Q 41 and 42..

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- April 3rd 2009, 12:40 AMsiddscool19Motion And Force
Can anyone tell me how to do Q 41 and 42..

- April 3rd 2009, 04:18 AMmarataya
Q41 You should equate kinetic energy to potential energy so as the ball obtain enough kinetic energy to climb the largest circle (D=6R):

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. - April 3rd 2009, 04:19 AMCaptainBlack
- April 3rd 2009, 04:22 AMCaptainBlack