The velocities of two equal masses "A" and "B" are 13 m/s and -14 m/s respectively. What will be their respective velocities after they suffer one dimensional elastic collision?
Correct answer: A. - 14m/s and 13 m/s
- A. - 14m/s and 13 m/s
- B. -13 m/s and 14 m/s
- C. 0 and 13 m/s
- D. 0 and 14 m/s
Explanation
When masses of the two balls are equal. mA = mB = m v'A=vB v'B = vA The velocities of the balls are interchanged after collision. v'A = vB = - 14 m/s v'B = vA= 13 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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