Question

Mark the correct option(s) related to impulse.

• A. It is a vector quantity
• B. It is equal to change in momentum vector
• C. Its unit is same as that of momentum.
• D. If time interval for which force is acting, decreases keeping force the same, then the impulse decreases.

Answer 1

Answer: (A), (B), (C), (D)

If time interval for which force is acting, decreases keeping force the same, then the impulse decreases.

Step 1: Impulse

1. The term "impulse" refers to the overall effect of a force acting over time, and it's expressed in newton seconds.
2. The change in momentum of an object when it is worked upon by a force for a period of time is referred to as an impulse.

Step 2: Properties of impulse

1. It's a vector quantity
2. It is equal to the change in the momentum vector.
3. Its unit is the same as that of momentum.
4. The impulse decreases if the time interval for which the force is acting decreases, while the force remains constant.

Hence all the options are correct (a, b, c, d)