Question

A train starts from rest. It acquires a speed of 25 m/s after

20 s. The total
distance is
​

Answer 1

Given parameters:

Initial speed of train = 0m/s

Final speed = 25m/s

time = 20s

Unknown:

Total distance covered = ?

Solution:

Speed is a scalar quantity that has magnitude and no direction.

Mathematically;

Speed =
`(distance)/(time)`

distance = speed x time

Input the parameters and solve for distance;

Distance = 25 x 20 = 500m

The distance covered is 500m