Question

Find the momentum of a body of mass 100g having kinetic energy of 20 J.​

Answer 1

Here m=100g K.E=20J

Formula for K.E

Ek= kinectic energy , P=momentum, m=mass

$ke = \frac{ {p}^{2} }{2m}$

P^2 = 2m × K.E

= 2 × 20 × 0.1

P^2= 4

Therefore p= 2

#lovelove!

Answer 2

Answer:

Hey

Mass, m=100g=0.1kg

kinetic energy =(1/2)*mv^2=20j

mv^2=40

v^2=40/0.1=400

v=20 m/s

Momentum =mv

=0.1*20

2kg m/s

Hope it will be helpful

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