Question 2
Scalars and VectorsA body of weight W N rests on a smooth plane inclined at an angle θ° to the horizontal. What is the resolved part of the weight in Newtons along the plane?
- A.W sin θ
- B.W cos θ
- C.W sec θ
- D.W tan θ.
Show the answer and explanation
Answer: A (W sin θ)
Explanation
The component of the weight along a slope of angle θ is W sin θ; the component at right angles to it is W cos θ.