Question

(3)During the central and elastic impact of two spheres, the difference of their velocities before the impact is:a) greater than the difference of their speeds after the impactb) equal to the difference of their speeds after the impactc) less than the difference of their speeds after the impactd) opposite to the difference of their speeds after the impactchoose the correct answer

Answer 1

During the central and ealastic impact of two spheres, the difference of their velocities before the impact should be greater than the difference of their speeds after impact.

After the impact, energy is lost which might lead to reduction in velocity.

The central and elastic impact of two spheres, the difference of their velocities before the impact is greater than the difference of their speeds after the impact.

ANSWER:

a) Greater than the difference of their speeds after the impact.