PH 105-106

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Average Velocity
& Units

m/s
Average Acceleration
& Units

m/s²
Velocity at time t with acceleration a:
Units?

m/s
Distance at time t with acceleration a:
Units?

meters
Find velocity at a point d with acceleration a:
distance at time t without acceleration a:
Average Velocity:
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?
Common Trigonometric Functions:

sin 0
cos 0
tan 0
- sin 0 = 0
- cos 0 = 1
- tan 0 = 0
sin15
cos15
tan15
- sin15=0.259
- cos15=0.966
- tan15=0.268
sin30
cos30
tan30
- sin30=0.5
- cos30=0.866
- tan30=0.577
sin45
cos45
tan45
- sin45=0.707
- cos45=0.707
- tan45=1
sin60
cos60
tan60
- sin60=0.866
- cos60=0.5
- tan60=1.73
sin75
cos75
tan75
- sin75=0.966
- cos75=0.259
- tan75=3.73
sin90
cos90
tan90
- sin90=1
- cos90=0
- tan90= not possible.
Define momentum:
What are it's units?

kg m/s or N s
Define Impulse:
- But is more useful as: Change in Momentum
Define Work:
What are the Units?
- where theta is the angle between F and d
- Its units are Joules (N m)
Define Power
What are the units?

It is Joules/s or Watts.
Define Kinetic Energy:

the Joule
Define Potential_G Energy

The Joule
When is total mechanical energy conserved?

When the sum of PE and KE is constant
What is the Work Energy Theorum?
- All work performed is equal to the Change in Kinetic Energy:

Author:	Anonymous
ID:	197190
Filename:	PH 105-106
Updated:	2013-02-01 19:43:39
Tags:	PH
Folders:
Description:	Important Physics Equations
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