Consider the three forces acting at O and in eq... - JAMB Physics 2020 Question
Consider the three forces acting at O and in equilibrium as shown in the figure. Which of the following equations is/are CORRECT?
I. P\(_1\) sin \(\theta_1\) = p\(_1\) cos \(\theta_2\)
II. P\(_3\) = P\(_1\) cos \(\theta_4\) + P\(_2 cos_2\)
III. P\(_1 \sin \theta_1 = P_2 \sin \theta_2\)
A
I only
B
II only
C
III only
D
I, II and III only
correct option: c
From \(\bigtriangleup\)ABC
P = P\(_1\) cos \(\theta\)
From \(\bigtriangleup\)ACD
P = P\(_2\) cos\(\theta_2\)
P\(_1\) cos \(\theta_1\)
P\(_2\)Cos \(\theta_2\)
Please share this, thanks:
Add your answer
No responses