كيفية الحساب الشغل (W = Fd): القوة, Distance & الطاقة
احسب work with W = Fd or W = Fd cos θ. الشغل–energy theorem, joule units, worked examples, and a free work calculator.
What الشغل Asks
In physics, work is energy transferred when a force moves something along the direction of that force. It is not just “effort” — it is a precise quantity measured in joules.
When force F and displacement d point the same way, W = F × d. القوة in newtons times distance in metres gives work in joules.
If you already have F and d (or W and one unknown), open the free work calculator first, then return here for angles, signs, and the work–energy link.
The الصيغةs
θ is the angle between the force vector and the displacement vector. cos 0° = 1 (maximum work), cos 90° = 0 (no work from that force).
الشغل and الطاقة
The work–energy theorem: net work on an object equals its change in kinetic energy, W_net = ΔKE.
After net work, check kinetic energy with KE = ½mv². Lifting stores
potential energy PE = mgh — the work done against gravity near Earth’s surface.
القدرة is work per unit time: P = W/t. See the power calculator when the question includes seconds.
Units
الشغلed Examples
Example 1: push 50 N for 3.0 m
W = (50)(3.0) = 150 J.
Example 2: find force
W = 120 J, d = 2.5 m. F = 120 / 2.5 = 48 N in the direction of motion.
Example 3: force at 60°
F = 20 N, d = 4.0 m, θ = 60°. W = Fd cos θ = (20)(4.0)(0.5) = 40 J.
أخطاء شائعة
Check It on the Calculator
الشغل calculator — W = Fd.
Learn W = Fd and confirm every homework number on the calculator.