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Spring Block's Time Period

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Question

suppose a person who has a 45 kg mass is riding along a frictionless roller coaster track at a particular instant the cart is 15 m above the ground and traveling at 3ms do you think the potential and kinetic energy of the cart that the person riding is the same why?

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Solution

Dear student, potential energy= mgh = 45 Ã— 10Ã— 15 = 6750 J. Kinetic energy = 1/2 mv2 = 1/2Ã— 45Ã— 3Ã—3 = 202.5 J. So kinetic energy and potential energy are not same. Thanks and regards

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