Question 5
Work, Energy and PowerThe diagram above shows the force (F) acting on an object through a distance (x). The work done on this object is expressed as
- A.Fx2 J
- B.Fx J
- C.F/x J
- D.Fx/2 J
Show the answer and explanation
Answer: D (Fx/2 J)
Explanation
Work done is the area under the force–distance graph, a triangle of base x and height F, so W = ½Fx = Fx/2.