Question

Find the momentum of the body of mass 100 g having a kinetic energy of 20 j

Answer 1

$\huge\red{As-Salamu-Alykum}$

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$\huge\orange{Given:-}$

Mass = 100g =0.1kg

Kinetic energy = 20J

Momentum =?

$\huge\purple{Solution:-}$

Kinetic energy = P^2/2m

P^2= K.E ×2m

P^2= 20×2(0.1)

P^2 = 4

Taking sqrt on both sides

sqrt P^2 =sqrt 4

P = 2Kgm/s

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