1. 1-Dimensional Vertical Motion
Free Fall - an object dropped from the surface of a planet in the absence of air resistance undergoes “free fall”
Acceleration due to the force of gravity, on earth, is known as, “g”.
g = -9.8 m/s/s
All objects, on earth, accelerate at the constant rate of -9.8 m/s/s, in the absence of air resistance.

2. Air resistance - the force exerted by the air on a falling object

3. Terminal Velocity - the largest velocity that is reached by a falling object
when air resistance balances the pull of gravity the object stops accelerating and speed remains constant = TERMINAL SPEED.

4. Terminal Velocity

5. Terminal Velocity

6. UNIFORM ACCELERATION OBJECTS WITH INITIAL VELOCITY OBJECTS FROM REST
Average Velocity Vav = Dd/Dt
Acceleration a = Dv/Dt
OBJECTS WITH
INITIAL VELOCITY
OBJECTS FROM REST
Vf = Vi + aDt
Dx = Vi Dt + ½(aDt2)
Vf = sqrt(Vi2 + 2aDx)
Dx = ½(Vi +Vf )Dt
Vf = aDt
Dx = ½(aDt2)
Vf = sqrt(2aDx)
Dx = ½(Vf )Dt
FREE FALL
g = 9.8 m/s/s
Vf = Vi - gDt
Dy = Vi Dt - ½(gDt2)
Vf = sqrt(Vi2 -2gDy)
Dy = ½(Vi +Vf )Dt
Vf = -gDt
Dy = ½(-gDt2)
Vf = sqrt(2(-g)Dy)
Dy = ½(Vf )Dt

7. sources http://www.physicsclassroom.com/mmedia/newtla ws/sd.cfm
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