Question

Prove 2as= v2-u2 by dimension formula.

Answer 1

i know graphical and arithmatic method.. if u r trying to ask the third equation of motion... tell me if it is third eq. of motion

Answer 2

dimension of

2as = m*m/s*s = m^2/s^2 ......i)

v^2 - u^2

here v and u both stand for velocity hence their dimensional Formula will be same

v^2 = u^2 = (m/s)^2 = m^2/s^2 ......ii)

from equation i) and ii) it's proved that

DIMENSION OF RHS = DIMENSION OF LHS