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K.E. = 1/2 mv^2 = Work done = F x d = constant.

1. (a) Further, v^2 = u^2 + 2as = 0 + 2ad = 2(F/m)d
2. (b) K.E. = 1/2 mv^2 = Work done = F x d = constant
3. (c) K.E. acquired = Work done = F x d = constant
4. (d) All of the above

Correct answer: (d) All of the above

Solution

All the options are correct as they represent valid relationships derived from the work-energy theorem and kinematic equations. The kinetic energy acquired by an object is equal to the work done on it, and the equations are consistent with the principles of mechanics.

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