PH 105-106

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1. Average Velocity
& Units m/s
2. Average Acceleration
& Units m/s2
3. Velocity at time t with acceleration a:
Units? m/s
4. Distance at time t with acceleration a:
Units? meters
5. Find velocity at a point d with acceleration a: 6. distance at time t without acceleration a: 7. Average Velocity: 8. On an xy axis with a velocity with angle between velocity and the x axis, What is the X component of the velocity? What is the Y component of velocity?  9. Common Trigonometric Functions:

sin 0
cos 0
tan 0
• sin 0 = 0
• cos 0 = 1
• tan 0 = 0
10. sin15
cos15
tan15
• sin15=0.259
• cos15=0.966
• tan15=0.268
11. sin30
cos30
tan30
• sin30=0.5
• cos30=0.866
• tan30=0.577
12. sin45
cos45
tan45
• sin45=0.707
• cos45=0.707
• tan45=1
13. sin60
cos60
tan60
• sin60=0.866
• cos60=0.5
• tan60=1.73
14. sin75
cos75
tan75
• sin75=0.966
• cos75=0.259
• tan75=3.73
15. sin90
cos90
tan90
• sin90=1
• cos90=0
• tan90= not possible.
16. Define momentum:
What are it's units? kg m/s or N s
17. Define Impulse:
• • But is more useful as: Change in Momentum
• 18. Define Work:
What are the Units?
• where theta is the angle between F and d
• Its units are Joules (N m)
19. Define Power
What are the units? It is Joules/s or Watts.
20. Define Kinetic Energy: the Joule
21. Define PotentialG Energy The Joule
22. When is total mechanical energy conserved?
When the sum of PE and KE is constant
23. What is the Work Energy Theorum?
• All work performed is equal to the Change in Kinetic Energy:
• Author: Anonymous ID: 197190 Card Set: PH 105-106 Updated: 2013-02-01 19:43:39 Tags: PH Folders: Description: Important Physics Equations Show Answers: