Question

Assertion : A horse has to pull a cart harder during the first few steps of his motion.

Reason : The first few steps ate always difficult.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option (c) A is true but R is false

Explanation :

In the first few steps, work has to be done against limiting friction and afterwards, work is to be done against dynamic friction, which is smaller than the limiting friction.