Taking bullet, wooden spheres and rod as a system, there is no net external torque on the system so, angular momentum of system is conserved. Initial angular momentum of system is L; =0+ Rx (mus) (:: rod was ct rest >L;= mv6R Final angular momentum of system is 4=IW/where, I is moment of inertia of system amd wis angulas velocity of system after callision.

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Q: answer

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.