GCEFurther MathematicsVectors2019

A vector has magnitude 10 and makes an angle of 60° with the positive x-axis. Find its y-component.

A5
B5√2
C5√3CORRECT
D10
AI
Toaster Teacher
Why the answer is C, and why the others tempt you.
The y-component is given by magnitude × sin(60°) = 10 × (√3/2) = 5√3. The x-component would be 10 × cos(60°) = 5.
Want this in Pidgin, Yoruba, Igbo or Hausa? Sign up free →

Practice more Further Mathematics questions

GCE Further Mathematics has thousands more questions like this — with Worked answers on every one.