Question

The dimensions of potential energy of an object in
mass, length and time are respectively
(2) 1, 2,- 2
(1) 2, 2, 1
6
(3) -2, 1, 2
(4) 1,-1,2​

Answer 1

Answer:

Explanation:

→  Formula of potential energy is:

Potential Energy = mgh

Dimension of m is -M

Dimension of g (acceleration)is - LT^-2

Dimension of h is -L

So dimension of PE :

M×L×$T^{-2}$×L =  M$L^{2} T^{-2}$