A 10-N force at right angle 45 degree above the horizontal has a horizontal component of about ? CHOICES IN THE DETAILS ..

Steps please ..
A) 7 N
B) 5 N
C) 10 N

1 Answer
Oct 13, 2017

(A) 7N

Explanation:

i.stack.imgur.comi.stack.imgur.com

According to the diagram,

  • A=45°
  • c=10N
  • b="horizontal component"

We'll be using, costheta="adjacent"/"hypotenuse"

Here,

  • theta=45°
  • "hypotenuse"=F=10N
  • "adjacent"=F_x=?

=>cos45°=F_x/(10N)

=>F_x=10N*cos45°~~7N