Question

derive the following a) v=u+at b) 2as = v²- u ​

Answer 1

Answer:

a)From the first equation of motion,

v=u+at

t= av−u ...........(i)

For a uniformly accelerated motion, Average velocity=

2v+u ...........(ii)

Displacement=Average Velocity×Time

Substituting from (i) and (ii),

s=( 2v+u)×(av-u)

∴v2=u2+2as

hope you understood