Lesson 9, Topic 1
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# Linear Momentum

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### Topic Content:

• Definition of Momentum
• Definition of Impulse

### What is Momentum?

The momentum of a body is the product of the mass of a body and its linear velocity. The symbol that is used to represent momentum is p.

Momentum, p = mass (m) Ã— velocity (v)

p = kg Ã— ms-1.

Its unit is kgms-1. It is a vector quantity.

The momentum of a body depends on the mass and the velocity with which the body is moving. Its direction is the same as the direction of the object’s velocity.

A bus can have a large momentum even if it’s moving slowly because of its large mass.

A bullet can have a large momentum even though it has a small mass because it’s moving with a high velocity.

If an object is at rest it has no momentum no matter how large its mass is.

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#### Responses

1. Well understood and am impressed with the working examples…
God bless you….