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  • Solve! A force of 10N acts on a body of mass 20kg for 10 seconds. The change in momentum is :

    A force of 10N acts on a body of mass 20kg for 10 seconds. The change in momentum is : 

  • Option 1)

    50 kgm/s

  • Option 2)

    100 kgm/s

  • Option 3)

    300 kgm/s

  • Option 4)

    200 kgm/s

 

Answers (1)

As learnt in

Linear Momentum -

Quantity of motion in a body

\overrightarrow{P}=M\times\vec V

M= Mass and V= velocity

\overrightarrow{P}= Linear Momentum

- wherein

\ast Vector Quantity

\ast Same as that of velocity

Unit- Kg m/sec (S.I)

 

 \underset{\Delta P}{\rightarrow} = f.\Delta f \Rightarrow \Delta P=10 \times 10 = 100 kgms-1


Option 1)

50 kgm/s

Incorrect option

Option 2)

100 kgm/s

correct option

Option 3)

300 kgm/s

Incorrect option

Option 4)

200 kgm/s

Incorrect option

Posted by

Vakul

View full answer

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