Gravity The attraction between the jumper and the earth Air Resistance the friction caused by air molecules Air Resistance increases as speed increases TERMINAL VELOCITY air resistance and gravity are equal acceleration stops ID: 198018
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Slide1
What are the forces acting on a base jumper as he falls?
Gravity
(The attraction between the jumper and the earth)
Air Resistance
(the friction caused by air molecules)Slide2
Air Resistance increases as speed increases…
TERMINAL VELOCITY! (air resistance and gravity are equal, acceleration stops)Slide3
The effect of Air Resistance can be increased by…
Decreasing Mass
Increasing
Surface Area (Parachutes!)Slide4
Design a Parachute! (write this on the blank page at the back of your packet)
Any engineering project has
criteria and constraints. Criteria – A standard of judgment. Our parachute must make the army man fall at a slower velocity
Our parachute should land the army man on his targetConstraints – Limits to work withinOur parachute must be built in 2 periodsOur parachute must only use given materials