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Which one of the following is not measured in units of energy? A. Couple × angle turned through. B. Moment of inertia × (angular velocity)2. C. Force × distance. D. Impulse × time. E. Mass × acceleration × distance.
Energy (J) = kg.m^2.s^-2 A. What is the unit of couple? Nevertheless angle has a unit of rad. I think the answer is A. B. Moment of Inertia (I) = kg.m.s^-1; (angular velocity)^2 = rad^2.s^-2. I think the answer is B too. C. Not the answer. Obviously this is J. D. Impulse (I) = kg. m.s^-1; time (t) =s. I think the answer is D. E. Not the answer. Obviously this is J. What do you think the answer? I think the answer is between A, B, and D. Please help.