Physics Mechanics

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Last updated 12:20 AM on 8/10/26
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6 Terms

1
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Velocity of COM

Unchanged, assuming no resultant external forces are acting on the system. Add equation.

2
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Total momentum during a collision

Is conserved (unchanged) assuming no resultant external forces are acting on the system. Add equation.

3
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Increase in mass towards centre of rotaion

I=mr²

r decreases, m increases, I decreases

OR

L=Iw

w increases, L is constant, I decreases

4
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Ek (ROT) changes

  • Equation

  • Heavier COM causes I to decrease, hence w increases

  • Ek (ROT) will decrease & Ek linear will increase

5
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L

Angular momentum is conserved no external torques act.

6
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Max speed in banked corners

  • v=root(rgtan˚)

  • If mas speed is exceeded the Fc is too small to cause circular motion

  • The object will move in a straight line at a tangent to the bend