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PHYS 2211 ABCDE Spring 08
MP32: Momentum and Impulse
Due at 11:58pm on Tuesday, March 4, 2008
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The ImpulseMomentum Theorem
Learning Goal:
To learn about the impulsemomentum theorem and its applications in some common cases.
Using the concept of momentum, Newton's second law can be rewritten as
, (1)
where
is the
net
force
acting on the object, and
is the rate at which the object's momentum is changing.
If the object is observed during an interval of time between times
and
, then integration of both sides of equation (1) gives
. (2)
The right side of equation (2) is simply the change in the object's momentum
. The left side is called the
impulse of the
net force
and is denoted by
. Then equation (2) can be rewritten as
.
This equation is known as the
impulsemomentum theorem
. It states that the change in an object's momentum is equal to the
impulse of the net force acting on the object. In the case of a constant
net
force
acting along the direction of motion, the
impulsemomentum theorem can be written as
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 Spring '08
 UZER
 Force, Momentum, Particle, net force, Assignment Print View, ImpulseMomentum Theorem, 1 kilograms

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