A car won’t roll down a ramp if balanced by a force up the ramp. If you also balance out the normal force exerted on the car, you don’t even need the ramp!! #iteachphysics pic.twitter.com/vn1WfDNLYV
— Curtis Geldert (@curtisgeldert) November 9, 2018
Download from https://drive.google.com/open?id=12Caj6AVa5Gcgk0MpwktVGR2uGrv1IiOl.
change system and see bar charts
http://physics.bu.edu/~duffy/HTML5/Atwoods_machine_with_pulley_energy.html
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Helen rates this resource as good
Torque and angular acceleration
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Conservation of energy
http://physics.bu.edu/~duffy/HTML5/energy_ramp_roll.html
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Torque and angular acceleration
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Equilibrium
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Torque
http://www.thephysicsaviary.com/Physics/Programs/Games/TorqueGame/index.html
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Law of Moments
http://physics.bu.edu/~duffy/HTML5/balanced_beam.html
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