Define the displacement of the airplane while the radar was tracking it: r⃗ ba=r⃗ b−r⃗ ar→ba=r→b−r→a. What are the components of r⃗ bar→ba?.

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

real, smaller and upside-down.   so the answer should be b.