Question

In two different experiments, an object of mass $5\, kg$ moving with a speed of $25 \,ms ^{-1}$ hits two different walls and comes to rest within
(i) 3 second,
(ii) 5 seconds, respectively.
Choose the correct option out of the following :

• A. Impulse and average force acting on the object will be same for both the cases.
• B. Impulse and average force acting on the object will be same for both the cases.
• C. Average force will be same for both the cases but the impulse will be different.
• D. Average force and impulse will be different for both the cases.

Answer 1

Answer: (B)

Impulse and average force acting on the object will be same for both the cases.

Answer 2

From the given options the correct answer is option (B): Impulse and average force acting on the object will be same for both the cases.