A body moving with uniform acceleration a stratght line describes `25 m` in the fifth second and `33 m`in the seventh second. Find its initial velocity an dacceleration.

Explanation

`29 =u+(a)/(2)(2xx5-1)` and `33=u+(a)/(2) (2xx7-1)`
Solving, we get `u=7 m s^(-1), a=4 ms^(-2)`.