Question
The position x of a particle moving along x-axis at time t is given by equation t=√x +4 , where x is in meter and t is in seconds. Find the position of particle when its velocity is zero.
Joshi sir comment
given that x = (t-4)2
so dx/dt = 2(t-4)
or v = 2t-8
now for v=0, t=4
put t=4 and get x