MECHANICAL

Mechanical Work Calculator

W = F · d · cos θ · Power · Energy · Units conversion

J ft·lb cal

W = F × d × cos(θ)

N
m
°
Work (W) J
Work (ft·lb) ft·lb
Work (cal) cal
Work (Wh) Wh
W = F · d · cos θ

Work vs force

F ↑ W ↑ W
Work increases linearly with force (constant distance)

Work concept

F d W = F × d (parallel)
Work = Force × Distance (same direction)

Power = Work / Time

J
s
Power (P) W
Power (kW) kW
Power (HP) hp
Energy (1 hour) Wh
P = W / t

Power vs time

t ↑ P ↓ P
Power decreases with time (constant work)

Work-power relationship

W = P × t P = W / t
Power = rate of doing work

Solve for F or d

J
N
m
°
Force (F) = W / (d·cosθ) N
Distance (d) = W / (F·cosθ) m
F = W / (d·cosθ)  |  d = W / (F·cosθ)

Relationship

Small F Large F Same Work Same Work
For same work, force and distance are inversely related