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  3. 9th Class
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  5. Force and laws of motion

9th Class Science Force and laws of motion Question Bank Force And Laws Of Motion Summtive Subjective Problems

  • question_answer
    What is the momentum of a man of mass 75 kg when he walks with a uniform velocity of 2 m/s?

    Answer:

    \[m=75kg,\,\,v=2m/s\] \[\therefore \,P=m\times v=75\times 2\,\,kg\,\,m/s=150kg\,\,m/s\]


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