Jason is pulling a box across the room. He is pulling with a force of 13 newtons and his arm is making a 50 angle with the horizontal, what is the vertical component of the force he is pulling with?

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,