Given
Applied force
F = 290 N
Friction
f = - 80N
Distance
d = 3 m
Explanation
Work can be calculated with the equation: Work = Force × Distance. The SI unit for work is the joule (J), or Newton • meter (N • m).
A.
[tex]\begin{gathered} W=Fd \\ W=290N*3m \\ W=870\text{ J} \end{gathered}[/tex]B.
[tex]\begin{gathered} W=-80N*3m \\ W=-240\text{ J} \end{gathered}[/tex]C.
[tex]\begin{gathered} W=(290-80)N*3m \\ W=630\text{ J} \end{gathered}[/tex]