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ScienceCLASS 9CBSE

answered 27 Mar 2026

A rocket is moving up with a velocity v. If the velocity of this rocket is suddenly tripled, what will be the ratio of two kinetic energies?

A.VERIFIED ANSWERfact-checked by tutors

Soln:

Initial velocity=v=3v

Initial kinetic energy= ¹v²

2

Kinetic energy= ¹v²

2

¹m(3v)²₌ 9(¹ mv²)

2 2

Ratio between Initial kinetic energy and final kinetic energy is 1:9

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