NEET PG 2024 Cut off Reduce by NBEMS - Qualifying Percentile & Branch-wise Expected Cutoff

Linear Momentum MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET

Quick Facts

  • 6 Questions around this concept.

Solve by difficulty

A bullet of mass 10 g moving horizontal with a velocity of 400 m s-1 strikes a wood block of mass 2 kg which is suspended by light inextensible string of length 5 m. As result, the centre of gravity of the block found to rise a vertical distance of 10 cm. The speed of the bullet after it emerges out horizontally from the block will be

A stone is dropped from a height of h. It hits the ground with a certain momentum P. If the same stone is dropped from a height 100% more than the previous height, the momentum when it hits the ground will change by:

Concepts Covered - 1

Linear Momentum
  1. Linear momentum of a body is the quantity of motion contained in the body.

  2. It is measured in terms of the force required to stop the body in unit time.

  3. If a body of mass m is moving with velocity v, then its linear momentum p is given by p=mv.

  4. It is a vector quantity and its direction is the same as the direction of the velocity of the body.

  5. S.I. Unit : kg-m/sec

  6. Dimension- MLT-1

  7. If two objects of different masses have the same momentum, the lighter body possesses greater velocity. 

               As p=m1v1=m2v2=constant

                 \therefore \frac{V_1}{V_2}=\frac{m_2}{m_1}\Rightarrow V \ \alpha \ \frac{1}{m}

                  

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Linear Momentum

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