Question

Question 4 Two perpendicular forces such that force PN is acting towards the point and 16N force is acting away from the point, if their resultant is 20 N, determine the magnitude of force P 0 15 N 6N 10 N 12N Previous Save & Next​

Answer 1

Answer:

A+B=16...(1)

tanα=A+BcosθBsinθ=tan90

Thus, A+Bcosθ=0⇒cosθ=−BA...(2)

We also have: 8=A2+B2+2ABcosθ...(3)

Solving these we get, A=6N and B=10N