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The change in momentum of a body having mass $1500 kg$ when its velocity increases from $36 km / h$ to $72 km / h$ will be

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15000 kgm / s

15900 kgm / s

26892 kgm / s

15628 kgm / s

answer is A.

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Detailed Solution

[144][145]
The change in momentum of a body having mass

1500 kg

when its velocity increases from

36 km / h

72 km / h

will be

15000 kgm / s

.
Given:

mass (m) = 1500 g

velocities are in km/h, on converting the respective velocities we get,

v_{2} = 20 m / s

v_{1} = 10 m / s

Change in momentum (p) = m v_{2} - m v_{1}

p = 1500 (20 - 10)

p = 15000 kgm / s .

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