CBSE Class 9 Answered
A body of mass 25g has a momentum of 0.40 kgm/s. find its kinetic energy
Asked by sk7752052 | 21 Jan, 2024, 21:05: PM
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
if mass m = 25 gram and momentum is p = 0.4 kg m/s , then kinetic energy is
Kinetic energy K = 3.2 J
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