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Transcript of 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
Collision type 5 is when two moving objects collide and move off at different speeds
Lastly, collision type six is when two moving objects collide, stick together, and move off at the same speed.
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
relate Newton's 3rd law
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