Question

Body a body is travelling with a uniform acceleration crosses two points a and b with velocity 20 metre per second and 30 metre per second respectively the speed of body at the midpoint of a and b is

Answer 1

ans is 5√30

Explanation:

VA =20

Vb=30

square both and add which gives 1300/2and find there √which gives5√30

Answer 2

Answer:

LET US CONSIDER DISTANCE BETWEEN POINT   A & B IS X

now   V2 = U2 + 2as

         900 = 400 + 2ax          (  s =x )

        900 - 400 = 2ax

                     a = 500/2x

        now for midpoint between A & B distance = X /2

      V2 = 400 +2* 500/2X *X/2

BY SOLVING THESE

           V = 25.5

Explanation: