Momentum

འགུལ་ཚད།

འགུལ་ཚད། Momentum

• Momentum is a measurement of mass in motion: how much mass is in how much motion. It is usually་given the symbol p.
• �Defined  by P=mv kgm/s

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• འགུལ་ཚད། = གདོས་ཚད་ * མྱུར་ཚད།�� 

�This simple relationship means that doubling either the mass or velocity of an object will simply double the momentum.

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Practice�Take an Example of car

Impulse ��རྡེག་ངར།

Impulse Changes Momentum��རྡེག་ངར་གྱིས་འགུལ་ཚད་སྒྱུར་བར་བྱེད།�

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• རྡེག་ངར = འགུལ་ཚད་ཀྱི་འགྱུར་བ།

Impulse = change in momentum.

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• Force * time = change in momentum

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Solve

• Mass   100g   = convert it into kg   0.1kg

�Final velocity(v)- Initial velocity(u)= 2m/s -2m/s

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�change in momentum = 0. 1 *(2-2) 

                           �0

�which is wrong( here the importance of vector has to be defined

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Solve 2

• Mass   100g   = convert it into kg   0.1kg

�Final velocity(v)- Initial velocity(u)= -2m/s -2m/s

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�change in momentum = 0.1 *(-2-2) 

                           �                        �Where the impulse is =    0.4 kgm/s 

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Conservation of momentum�འགུལ་ཚད་ཀྱི་ཉར་ཚགས།

Momentum of an object can change due to impulse, as acceleration can change due to net force.

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Only external impulse and force can change the momentum.

This Photo by Unknown Author is licensed under CC BY-NC-ND

�collisions��གདོང་ཐུག

• Momentum is conserved in Collisions.
• གདོང་ཐུག་བྱུང་སྐབས་འགུལ་ཚད་ལ་ཉར་ཚགས་ཐེབས་ཀྱི་ཡོད།