MCQ
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
- A$90°$
- B$0°$
- C$45°$
- ✓Different from $90°$
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$A$: standing on the horizontal surface
$B$: standing on the block
To an observer $A,$ the net work done on the block is