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  • Please help! A body of mass m = 3.513 kg is moving along the x-axis with a speed of 5.00 ms-1 . The magnitude of its momentum is recorded as

A body of mass m   = 3.513 kg is moving along the x-axis with a speed of 5.00 ms-1 . The magnitude of its momentum is recorded as

  • Option 1)

    17.57 kg ms -1

  • Option 2)

    17.6 kg ms-1

  • Option 3)

    17.565 kg ms-1

  • Option 4)

    17.56 kg ms-1

 

Answers (2)

best_answer

As we learnt in

Impulse Momentum Theorem -

\vec{F}=\frac{d\vec{p}}{dt}

\int_{t_{1}}^{t_{2}}\vec{F}dt=\int_{p_{1}}^{p_{2}}\vec{dp}

- wherein

If \bigtriangleup t  is increased, average force is decreased

 

 

Given  m= 3.513 kg, \; \nu = 5\ ms^{-1}

\therefore m\nu = 17.57 m s^{-1}

Correct option is 1.


Option 1)

17.57 kg ms -1

This is the correct option.

Option 2)

17.6 kg ms-1

This is an incorrect option.

Option 3)

17.565 kg ms-1

This is an incorrect option.

Option 4)

17.56 kg ms-1

This is an incorrect option.

Posted by

prateek

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17.565kgms-1

Posted by

Sowndarya

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