The area beneath a velocity-time graph within a given time interval gives A. the system's displacement during that interval.
B. the distance covered by the system during that interval.
C. the system's speed during the interval.
D. the system's acceleration during the interval.

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

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)