Question

Calculate Momentom: a bullet of mass 0.02kg moving at 1440km/hr​

Answer 1

Answer:

8 kg m/s

Explanation:

mass (m) = 0.02kg

velocity (v) = 1440 km/hr = 1140×1000/60×60 m/s

= 400 m/s

Since, momentum (p) = mass (m) × velocity (v)

→ p = 0.02 × 400 kg m/s

→ p = 8 kg m/s (Ans.)

Answer 2

Given,

mass (m) = 0.02 kg

velocity (v) = 1440 km/hr , or , 400 m/sec

To find,

momentum (p) = ?

Formula,

momentum (p) = mass (m) * velocity (v)

(p) = 0.02 kg * 400 m/sec

(p) = 8 kg m / sec .

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above attachment to understand how 1440 km/hr change into m/sec.

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hopefully its helped u dear :)