Question

The position of a particle depends upon time according to the relation x = (3t – 2) m. The speed of the particle at t = 2 s is​

Answer 1

Answer:

Explanation:According to the problem:

it i given that

x =(3m/s)t-(1m/s^2)t^2

x= 3t- 1t^2

dx/dt = V (speed)

therefore dx/dt = 3-2t

therefore at t=2

V = 3 - 2(2)

= 3-4

= -1 m/s

The negative sign indicates the motion is in opposite direction

Hence the speed of the particle at t=2 s is​ 1 m/s