Question

a particle moves along x axis with constant acceleration. the displacement is 2m at t=0 and is 0 when t=10s. if the acceleration of the particle is momentarily 0 at t=6s, determine acceleration and velocity at t=10s​

Answer 1

Answer:

a = 0 m/s² , v = -0.2 m/s

Explanation:

The question says that the particle moves with constant acceleration ie if the acceleration at t=0 is 0 then at all instants the acceleration must be 0.

If the acceleration is zero,the velocity too must be same at all instants

Hence,

s=ut + $\frac{at^{2} }{2}$

⇒-2 = 10u

⇒u = -0.2 m/s