When a ball of mass = 5kg hits a bat with a velocity = 3 m/s, in positive direction and it moves back with a velocity = 4 m/s, find the impulse in SI units
1. 5
2. 15
3. 25
4. 35
A particle of mass 15 kg has an initial velocity m/s. It collides with another body and the impact time is 0.1 s, resulting in a velocity m/s after impact. The average force of impact on the particle is
1.
2.
3.
4.
A particle of mass m at rest is acted upon by a constant force F for a time t. Its kinetic energy after an interval t is
1.
2.
3.
4.
The magnitude of the impulse developed by a mass of 0.2 kg which changes its velocity from is
1. 2.7 N-s
2. 1.8 N-s
3. 0.9 N-s
4. 3.6 N-s