Question

किसी 4 किलोग्राम के पिंड की गतिज ऊर्जा 200 दूरी है उसके संवेग की गणना कीजिए​

Answer 1

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Answer 2

Answer:

40 Kg m / sec

Explanation:

Given---> Mass of object = 4 kg

kinetic energy of object = 200 joule

To find ---> Momentum of object

Solution ---> We know that formula of kinetic energy is

k = 1/2 m v²

Dividing and multiplying by ' m ' we get

k = 1/2m (m² v² )

k= 1/2m ( m v )²

We know that

Momentum = mass × velocity

p= m × v

So

k = 1 / 2m ( P )²

p² = 2 m k

= 2 × mass × kinetic energy

= 2 × 4 × 200

= 8 × 200

p² = 1600

Taking square root of both sides we get

p = √1600

= √(16 × 100)

= 4 × 10

= 40 kg m / sec