Questions

A sphere collides with another sphere of identical mass. After collision, the two spheres move. The collision is inelastic. Then the angle between the directions of the two spheres is

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a

90°

b

0°

c

45°

d

Different from 90°

detailed solution

Correct option is D

Angle will be 90°, if collision is perfectly elastic

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A mass 'm' moves with a velocity 'v' and collides inelastically with another identical mass. After collision the I^{st} mass moves with velocity $\frac{\mathrm{v}}{\sqrt{3}}$ in a direction perpendicular to the initial direction of motion. Find the speed of the 2^{nd} mass after collision

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