Question

Suppose the kinetic energy of a body oscillating with
amplitude A and at a distance x is given by
K = Bx/x² + A²
The dimensions of B are the same as that of
(a) work/time (b) work × distance
(c) work/distance (d) work × time

Answer 1

Explanation:

In the given equation K=Bx/x³+A²dimension of x and A are same, so [K]=[Bx/x²]=[B/x]

∴B=K×x=K.E.×distance= work×distance(option b)

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