Question

Check the correctness of newtons second eq of motion

Answer 1

Answer:

Explanation:

s=ut +1/2at^2

So comparing  the correctness by Dimension analysis we write the terms in their  units

L^1= LT^-1*T + LT^-2*T^-2

We know that according to the law of homogeneity the same units can be added or subtracted

Hence we need to prove it in 2 ways

1st

L=LT^-1*T^1

On multiplying the unit is the same as of Lenght as T cancel each other.

2nd

L=LT^-2*T^2

Again on multiplying the time cancel each other hence resultant is equal to the lenght.

Hence Newton's 2nd law of equation is dimensionally correct.

I hope it Helps!