Download the app

Questions  

The position x of a particle varies with time t as  x=at2bt3. The acceleration of the particle will be zero at time t equal to

a
ab
b
2a3b
c
a3b
d
zero

detailed solution

Correct option is C

given  Position of particle  x=at2−bt3differentiate w.r.t. time t to get velocity velocity =dxdt=dat2−bt3dt⇒v=2at−3bt2again differentiate w.r.t. time t to get acceleration Acceleration =dvdta=d2at−3bt2dt⇒2a−6bt Acceleration will become zero O=2a−6bt⇒2a=6bt⇒t=a3b=time in which acceleration becomes zero

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

Particle located at x = 0 at time t = 0, starts moving along the positive x-direction with a velocity v that varies as v=ax. The displacement of the particle varies with time as 


phone icon
whats app icon