In the Collision lab we had a car with two springs on it. One with a plunger and one with a large circular spring on the front.
We measured force exerted by the car and the spring with a force detector and we measured position with a motion detector.
The oval spring had a smaller force than the plunger but the force exerted by the oval spring longer than the force exerted by the plunger.
We later called this the impulse, which was the same, the only difference was the time it took to exert the force.
Impulse = F * t
Impulse is related directly with mass
In the second lab we had two cars on the same ramp. One was not moving in the center of the ramp and the other we ran into the stationary car. We measured the velocity before, the velocity after, change in velocity, impulse, momentum before, and momentum of both after. Today (Feb. 4th, 2010) we decide in class what sets of data we need to graph in order to come up with anther model to find dissipated enegy.
Formulas we have so far:
Impulse = m * (change in) v
mv = p [mass * velocity = momentum]
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