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# Momentum

Momentum
by

## Dee Corbie

on 12 June 2014

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#### Transcript of Momentum

MOMENTUM
Momentum
- is the product of mass and velocity.
The law of conservation of momentum...
Conservation of momentum is the law that states the total momentum before a collision is equal
to the total momentum after a collision
So why do we care about momentum?
WE CARE BECAUSE MOMENTUM EFFECTS EVERY OBJECT MOVING OR NOT
For example. Say a 1kg ball is going 5 m/s (white), and hits another 1 kg ball going 0m/s(yellow). The momentum of the first ball will be transfered to the second ball
the equation for this is M1V1+M2V2=(M1+M2)Vf
*You add the masses "after the collision" because they stuck together and travel with the same speed. *
Lets talk about the types of collisions...
Collision type 1 is when one moving object hits a stationary object and both stick together and move at the same speed.
Collision type 2 is when two objects
collide and they bounce off each other. This transfer of momentum causes objects to move in different directions.
Collision type 3 is when one moving object hits a stationary object . The first object stops, transfers all of its momentum to the second object, and the second object moves off
collision type 4 is when one moving object hits a stationary object and they both move off at different speeds
5m/s
2m/s
3m/s
More mass
More mass
less mass
less mass
Collision type 5 is when two moving objects collide and move off at different speeds
More mass
More mass
less mass
less mass
5m/s
5m/s
6m/s
4m/s
Lastly, collision type six is when two moving objects collide, stick together, and move off at the same speed.
5m/s
1m/s
6m/s
Do Now: Make a list of 5 things that you think may have momentum and 5 things
that don't have momentum.
Therefore, the more mass and velocity an object has, the more momentum it has.
The formula for momentum (P) is:

P= M x V
What is the momentum of
an ostrich with a mass of
120 kg that runs with a veocity
of 16 m/s north
This law applies whether the objects stick together or bounce off
each other after they
collide
relate Newton's 3rd law
to momentum
1. If the truck has a mass of 2,000 kilograms, what is its momentum? (v = 35 m/s) Express your answer in kg•m/sec.

An 8-kilogram bowling ball is rolling in a straight line toward you. If its momentum is 16 kg•m/sec, how fast is it traveling?
What is the
mass?
Full transcript