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Momentum
I. Momentum - the property of a moving object that makes it difficult to stop.
(technically, product of mass and velocity)
Momentum = Mass x Velocity p = mv (kg•m/s) (kg)(m/s)
a) vector quantity
b) p has same direction as velocity
c) units - kg•m/s
Momentum helps us
[Flash] Kinetic Energy is conserved in perfectly elastic collisions
No The ball's energy is lost in the collision with the floor. It does not return its original position.
1) Relationship between force and momentum
When a force acts on a body it
Mathematical Relationship, F, p
p = mv
so ... Δp = mΔv
Fnet = ma
so ...
(Cross Multiply)
Fnett = mΔv
Since ... Δp = mΔv
Then ... Fnett = Δp
Force is the
time rate
Δp = Ft Force F, 'Follow through', t
The change in momentum that an unbalanced force produces on an object depends on ....
Noble and Greenough School H.S.
... how long the force acts on a body.
Yes.
She can compensate for a smaller force
2) Impulse
Combining all the equations
Write on your test
immediately Given this equation, what is another unit for momentum besides kgm/s?
Ns
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