Physics
For a relation F = , to hold true, the condition(s) necessary is/are: 1. velocities are equal to the velocity of light 2. velocities are much smaller than the velocity of light 3. mass remains constant 4. both (b) and (c)
Related Questions
The force required to produce an acceleration of 5 ms-2 in a body of mass 2 kg is:
- 2.5 N
- 20 N
- 10 N
- 25 N
According to Newton's second law of motion, the change in momentum takes place in a direction :
- opposite to the direction of force applied
- perpendicular to the direction of the force applied
- similar to the direction of the force applied
- none of these
1 Newton is equal to :
- 103 dyne
- 108 dyne
- 1010 dyne
- 105 dyne
Two balls of masses 4m and 8m are in motion with velocities 2v and v respectively. The ratio of their momentum would be :
- 2 : 1
- 1 : 2
- 1 : 1
- 1 : 4