Physics And Measurement Question 159

Question: Position of a body with acceleration ‘a’ is given by x=Kamtn, here t is time. Find dimension of m and n?

[Orissa JEE 2005]

Options:

A) m=1 , n=1

B) m=1, n=2

C) m=2, n=1

D) m=2, n=2

Show Answer

Answer:

Correct Answer: B

Solution:

As x=Kam×tn

[M0LT0]=[LT2]m[T]n=[LmT2m+n]
m=1 and 2m+n=0 therefore n=2 .



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