1. A motorcar of mass 1200 kg is moving along a straight line with a – InterviewSolution

1.	1. A motorcar of mass 1200 kg is moving along a straight line with a uniform velocity of 90 km/h. Its velocity is slowed downto 18 km/h in 4 s by an unbalanced external force. Calculatethe acceleration and change in momentum. Also calculate themagnitude of the force required.
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