Motion and Forces
Motion
Speed= distance/ time
30 km/h
acceleration= final velocity- initital velocity/ time
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Force
Force= mass x acceleration
acceleration= force/mass
m= force/acceleration
momentum= mass x velocity
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Gravity, friction and pressure
pressure= force/ area
g/cm(to the 3rd)
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work and energy
work= force x distance
power= work/ time
power= energy/ time
Machines
mechanical advantage= output force/ input force
efficiency (%)= output work/ input work
ideal mech advantage= length of incline/ height of incline
ideal mech adv= radius of input/ radius of output