Impulse & MomentumHardQuestion 5441
Question
A 0.5 kg ball changes velocity from 20 m/s to −30 m/s. Contact time = 0.01 s. Average force is:
- A500 N
- B1000 N
- C2500 NCorrect
- D100 N
Correct answer
2500 N
Explanation
Impulse = 0.5×50 = 25 N·s. F = 25/0.01 = 2500 N.