SI unit of impulse is:
Correct answer: B. Ns
- A. kg ms-2
- B. Ns
- C. N s-1
- D. Nm
Explanation
Impulse has units of momentum, i.e., N·s (Newton-second) equivalent to kg·m/s.
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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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