The newton-second is the unit of:
Correct answer: C. Impulse
- A. Work
- B. Power
- C. Impulse
- D. velocity
Explanation
Impulse is the change in momentum. The formula for change in momentum is Force into the interaction period which is basically a particular time period. The unit of force is N and for time is s hence the unit for impulse is Ns. Another possible answer would be momentum but the important point to be noted here is the difference between momentum and the change in momentum.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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