The displacement of a body at any time t after starting is given by `s=15t-0.4t^2`. Find the time when the velocity of the body will be `7ms^-1`.

The displacement of a body at any time t after starting is given by s=15t-0.4t^(2) . The velocity of the body will be 7ms^(-1) after time :

1) The displacement of a body at any time t after starting is given by s=15t-0.4t^(2) .The velocity of the body will be 7ms^(-1) after time = ? 2) for the previous question,the acceleration of the particles at any time is:

The displace ment of a body at any time t after starting is given by s=10t-(1)/(2)(0.2)t^2 . The velocity of the body is zero after:

The displace ment of a body at any time t after starting is given by s=10t-(1)/(2)(0.2)t^2 . The velocity of the body is zero after:

The displacement s of a moving particle at a time t is given by s=5+20t-2t^(2) . Find its acceleration when the velocity is zero.

The displacement(S) of a body in a time t is given by S=at^2+bt .Find the dimensions of a and b.

The displacement of a particle at time t is given by s= 2t^(3) -5t^(2)+ 4t-3 . Find the velocity when t = 2 sec.

The displacement s of a particle at time t is is given by s=2 t^3 - 4 t^2 -5t. Then find the time when the acceleration is 14ft/ sec^2

The displacement s of a particle at time t is is given by s=2 t^3 - 4 t^2 -5t. Then find the velocity at t=2 sec

The displacement s of a particle at time t is given by s = t^3 -4 t^2 -5t. Find the velocity and acceleration at t=2 sec