Q. 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) $90{^\circ}$
B) $0{^\circ}$
C) $45{^\circ}$
D) Different from $90{^\circ}$
Explanation
(d) Angle will be $90{^\circ}$ if collision is perfectly elastic
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.