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CBSE Class 9 Answered

A body of mass 25g has a momentum of 0.40 kgm/s. find its kinetic energy
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Asked by sk7752052 | 21 Jan, 2024, 09:05: PM
answered-by-expert Expert Answer

Let m be mass and v is velocity

Momentum p = mass × velocity = ( m v )

Kinetic energy  K = (1/2 ) m v2

Kinetic energy can be written in terms of momentum as explained below

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if mass m = 25 gram and momentum is p = 0.4 kg m/s , then kinetic energy is

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Kinetic energy K = 3.2 J

Answered by Thiyagarajan K | 21 Jan, 2024, 09:34: PM
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