Aperson is pushing a box across the table the measure forces on the box are 10n 14n + -7n + -10n in which force is represented by -7n

a

explanation:

because they are cartillidge

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

0.11 m/s and 0.28 m/s should be correct

it is a negative acceleration