Question

A train starting from rest moving with uniform acceleration covers a distance 200m in 10s. it covers the next 200m in a time of
1) 20s
2) 10s
3) 5s
4) 14.14s

Answer 1

Explanation :

The train will cover 10 s in next 200m because the train is moving with uniform acceleration.

So, Option B is correct.

$\rule{200}{2}$

Acceleration :

It is defined as the rate of change of velocity.

(i) It is a vector quantity.

(ii) Its direction is same as that of change in velocity and not of the velocity (That is why acceleration in circular motion is towards the centre).

(iii) There are three ways possible in which change in velocity may occur.