Question

The initial velocity of a particle is given by u (at t=0) and the acceleration by f , where f=at(hee t is time and a is constant). Which of the following relations is valid
(a)v=u+at^2
(b)v=u+(at^2)/2
(c)v=u+at
(d)v=u

Answer 1

@Vincent-Lyon.Fr

Answer 2

@ganeshie8

Answer 3

@ParthKohli

Answer 4

i think it's (a) where \(v=u+at^2\) because the final unit must be in distance unit per time unit... and \(f\) which is equal to \(at\) is the acceleration with unit distance per time squared. So the product \(f\times t\) will make the 2nd term a velocity so...\[v=u+f(t)=u+at(t)=u+at^2\]