Moment of Inertia :: Discussion


8.A bullet is fired and gets embedded in a block kept on the table. If a table is frictionless, then?
A.Kinetic energy gets conserved
B.Potential energy gets conserved
C.Momentum gets conserved
D.Kinetic energy and potential energy gets conserved
Answer:  Option  C
Explanation:

Only momentum gets conserved when a bullet is fired and gets embedded in a block kept on a frictionless table. Some kinetic energy is lost when the bullet penetrates the block.

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Published by:Michael Daani

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