Momentum — Easy JEE physics MCQ
A force of 10 N acts on a body of mass 2 kg for 3 seconds. If the body was initially at rest, its final velocity is:
- A. 5 m/s
- B. 10 m/s
- C. 15 m/s
- D. 20 m/s
Solution
Using impulse = change in momentum: F × t = m × v. Thus v = (10 × 3) / 2 = 15 m/s.