Question

(1) Write the dimensional formal of inertia.
(2) check the correctness of formula v2-u2=2as.
(3) Derive the formula s=ut+1/2 at2.
(4) State triangle law of motion

Answer 1

( 1). S I unit of inertia = kg m^2

So, Dimensional formula of inertia = [ M L^2 T °]

( 2). V^2 - U^2 = 2as

In LHS,

[ LT ^-1] ^2

= [ L^2 T ^-2]

In RHS,

= 2 a s

=[ LT^-2] [L]

= [ L^2 T ^ - 2]

Hence, LHS = RHS

So, Dimensional formula is correct.

(3) In attached picture.

( 4). In attached picture.