If kinetic energy of a body becomes four times of the initial value, then the new momentum will
Correct answer: A. become twice of its initial value
- A. become twice of its initial value
- B. become three times of its initial value
- C. become four times of its initial value
- D. remain constant
Explanation
According to the formula K.E=p2/2m, if the kinetic energy of a body becomes four times its initial value, the new momentum will be twice the initial 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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