Question

Which one of the formulae for Kinetic energy (K) given below will be ruled out on the basis of dimensional arguments? Justify it.
(a) k=m2v3 (b) k = mv2 (c) k = ½ mv2 (d) k = 3/6 mv2
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Answer 1

Answer:

1/2 mv2 is formula of kinetic energy

Answer 2

Answer:

(c)

k=1/2 mv2

is the correct answer