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.

Question

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.

anonymous · Answer

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.

anonymous · Answer

@satellite73