Question

The distance covered by a particle varies with time as X = at^2- bt^3 . find the time at which its acceleration is zero​

Answer 1

Answer:

is it a/3b ? because,

all u have to do is differentiate the expression 2 times w.r.t time t, because as we know, dx/dt=v and dv/dt=A ( taken caps as there's already 'a' as const. present) , and then plug in A as 0, find t....