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What is impulse?
The change in momentum
What is another way to find the impulse of a collision?
The average force times the change in time.
The total linear momentum of a system of particles is equal to what?
The product of the total mass M and the velocity of the center of mass of the system.
A rocket splits in two at the top of it�s parabolic flight path. Half falls straight down, half continues. Where does it land?
The CM will continue as usual. The rocket will land so that the systems CM will still be as usual.
What are the two types of forces which can act on a system of particles?
External and internal
What is Newtons Second Law (for a system)
The sum of forces acting on a system equals total mass times the acceleration of the CM.
What is general motion?
The sum of the translational motion of the CM, plus rotational, vibration etc types of motion about the CM.
Change in momentum over change in time.
How do you find the magnitude and angle of i + j?
square root of i-sqaured + j-squared. & arcTan
How do you represent the compression of a spring?
x can represent distance or compression in 1/2 k x-Squared
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