Question 96: Centre of Mass and Rotational Motion

Question

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

Accepted Answer

$\Delta$P = impulse = same since acceleration is different force acting will be different.

Answer

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

Answer

Impulse will be same for both the cases but the average force will be different.

Answer

Average force will be same for both the cases but the impulse will be different.

Answer

Average force and impulse will be different for both the cases.

Centre of Mass and Rotational Motion

In two different experiments, an object of mass 5 \mathrm{~kg} moving with a speed of 25 \mathrm{~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 :

Choose the correct answer: