Question

The equation of motion of a particle is s=t ^3– 3t, where s is in metres and t is in
seconds. Find​

Answer 1

Answer:

v =

Step-by-step explanation:

Question is incomplete. Assuming displacement, velocity and acceleration are to be calculated after 2 seconds.

Given displacement, s = t^3 - 3t

velocity, v = ds/dt = 3t^2 - 3

acceleration, a = dv/dt = 6t

at t = 2 seconds,

s = 2^3 - 3(2) = 2 m

v = 3 (2^2) - 3 = 9 m/s,    and

a = 6(2) = 12 m/s^2