Newton's second law states that the rate of _ change of is equal to external force.
Correct answer: C. Momentum
- A. Velocity
- B. Mass
- C. Momentum
- D. Position
Explanation
Option C is correct since the rate of change of momentum is force given by the formula Force=(mass * velocity)/time.Option A is incorrect since the rate of change of velocity is accelerationOption B is incorrect since the rate of change of mass is the mass flow rateOption D is incorrect since the rate of change of position which can be related to displacement is velocity.
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About Force and Motion
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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