*MECHANICAL ADVANTAGE - mmckinnonscience
*MECHANICAL ADVANTAGE =
Levers
EFFORT ARM OR RESISTANCE FORCE OR EFFORT MOVEMENT
RESISTANCE ARM EFFORT FORCE RESISTANCE MOVEMENT
Wedge Inclined plane Pulley
WEDGE LENGTH OR RAMP LENGTH Number of strands
WEDGE THICKNESS RAMP HEIGHT
Wheel and Axle
DIAMETER OF WHEEL* EFFIC = WORK OUTPUT x 100%
DIAMETER OF AXLE WORK INPUT
* WORK = FORCE x DISTANCE
* WORK INPUT = EFFORT FORCE x EFFORT DISTANCE
* WORK OUTPUT = RESISTANCE FORCE x RESISTANCE DISTANCE
* SPEED = DISTANCE
TIME
* POWER = WORK
TIME
* FORCE = MASS x ACCELERATION
* ACCELERATION = FINAL SPEED - INITIAL SPEED
(DECELERATION) TIME
* 102 g = 1 N
* 1 lb. = 4.5 N
REMEMBER: ALWAYS DIVIDE THE BOTTOM NUMBER INTO THE TOP NUMBER.
5 Put the top number into the calculator first. Push /. Then, put the bottom number in next.
10 Push =. 5 / 10 = .5
21 Put the top number into the calculator first. Push /. Then, put the bottom number in next.
7 Push = . 21 / 7 = 3
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