Question

A coal train in Montana starts from rest and accelerates at 2.5m/s^2 for 15 s.

Answer 1

Complete Question

A coal train in Montana starts from rest and accelerates at 2.5m/s^2 for 15 Find the trains maximum velocity

Answer:

The maximum velocity is
`v =  37.5 \ m/s`

Step-by-step explanation:

From the question we are told that

The acceleration is
`a =2.5\ m/s^2`

The time for the acceleration is
`t = 15 \  s`

Generally from the kinematics equation

`v =  u  +  at`

here u is the initial velocity and the value is 0 m/s given that it started rom rest

`v =  0  +  2.5  *  15`

`v =  37.5 \ m/s`