Question

The initial velocity of an object at point a is 20 m/s then the final velocity of the object at point b is 30 mpersec find its velocity at the mid of journey

Answer 1

Explanation:

v^2=u^2+2as..

900=400+2as..

2as=500..

s=250/a...

velocity at s/2..will be ..

v^2=u^2+2as/2..

v^2=400+2a×250/2a...

v^2=650...

v=√650 ...

v=25.49m/s..ans