Question

What is the momentum of a moving body of mass 2kg whose k.E. is 16J?

Answer 1

Answer:

Explanation:

MASS =  2 KG

KINETIC ENERGY =16 J

MOMENTUM=?

WE KNOW,

KINETIC ENERGY=0.5 MV²           [ M= MASS, V= VELOCITY]

MOMENTUM = MV

FORMULA,

MOMENTUM=√(2 M KINETIC ENERGY)

MOMENTUM=√(2*2*16)

MOMENTUM=2*4

MOMENTUM= 8 KG M/S.

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Answer 2

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ANSWER :

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The mass of the object, m = 2 kg

The momentum of the object, p = ?

The Kinetic Energy, K.E = 16 J

We know that,,,

$kinetic\: energy \: = \frac{p {}^{2} }{2m}$

From this,,,,

16 = p^2 / 2 × 2

16 = p^2 / 4

p^2 = 16 ×4

p^2 = 64

p = 8 kg m/s

The momentum, p is 8 Kg m/s

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