The velocity of a body of mass 10 kg increases from 4 m/s to 8 m/s when a force acts on it for 2s. What is the momentum before the force acts?

Academic Physics NCERT Class 9

Here, mass of the body $m= 10\ kg$

Initial velocity $u=4\ m/s$

Therefore, momentum before the force acts $P=mv$

$=10\ kg\times4\ m/s$

$=40\ kg-m/s$

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Updated on: 10-Oct-2022

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