Question

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

Answer 1

Answer:

Hey

Mass, m=100g =0.1kg

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

mv^2=40

v^2=40/.01=400

v=20 m/s

Momentum =mv

=0.1*29

=2kg m/s

Hope it will be helpful to you

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Answer 2

$\huge\mathfrak{Bonjour!!}$

$\huge\bold\purple{Answer:-}$

⏩ Here, m= 100g= 1/10 kg, K.E= 20J

Since, K.E.= 1/2 mv²,

Therefore,

20 = 1/2 × 1/10 × v²

or

v²= 400 or v= 20 m/s

Momentum, p= mv= 1/10 × 20 = 2 kg m/s

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Hope it helps...:-)

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