Question

1. Using the method of dimensions, check the correctness
of the following equations :

(v) V =
прr

Answer 1

Answer:

v

2

=u

2

+2as, writing the dimensional formula for each of them

[LT

−1

]

2

=[LT

−1

]

2

+[LT

−2

][L]

[L

2

T

−2

]=[L

2

T

−2

]+[L

2

T

−2

]

All the terms have the same dimensional formula & hence the Equation is dimensionally correct.