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Frequently Asked Questions

What units is momentum measured in?

momentum (p) is measured in kilogram metres per second (kg m/s) A lorry has a mass of 7,500 kg. It travels south at a speed of 25 m/s. Calculate the momentum of the lorry.

Is energy always a constant when the momentum is constant?

No. Energy also involves potential energy. When kinetic energy is constant, potential energy may chance. There is another possibility. Momentum is constant means mv is constant. This does not exclude the case when mass and velocity change, but their product is constant. If this happens, even potential energy will change.

What type of quantity is momentum?

Correct answer to the question What type of quantity is momentum? It is a scalar quantity because it involves magnitude only. It is a vector quantity because it involves magnitude only.

What is the equation for momentum?

The momentum of a body is the quantity of motion it posses due to its mass and velocity. Momentum equation is momentum = mass x velocity.


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