Question

A body has mass of 10 g and kinetic energy 200 joules. the momentum of the body is:​

Answer 1

Explanation:

Mass, m=200gm=0.2kg

K.E=10J

Momentum,P=?

As,

2

1

mv

2

=10

v

2

=

0.2

10×2

=100

v=10ms

−1

Momentum, P=mv=0.2×10=2kgm/s

Answer 2

$p \: = \: \sqrt{2 \: \times \: m \: \times ke}$

$p \: = \: \sqrt{2 \times 10 \times {10}^{ - 3} \times 200}$

$p \: = \: \sqrt{4}$

P = 2 Kgm/s= Momentum

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