Question

X=2 t2 +t+5 displacement of a particle in t in 2 seconds find the acceleration

Answer 1

Answer:

The displacement of a particle in straight line is given by x =2t² + t + 5, where x is expressed in metres and t in seconds. What is the velocity of the particle at t =2sec?

What is the velocity of the particle at t = 2sec?

Plugging-in the values,

x = 15 m and t = 2 s ; d =15 - 5 = 10 m

The velocity of the particle is 2d / t. The velocity is 2(15m -5m) / 2s = 10 m/s.