Question

Wire bend forming an arc of circle with the subtended angle 30°, radius 10cm is symmetrical about x axis. Locate C.G.​

Answer 1

Answer:

ANSWER IS (9.,88 cm , 0)

Explanation:

Answer 2

Given:-

α = 30°

R = 10 cm

To Find;-

Center of gravity

Solution;-

Since the arc is symmetrical about the x axis

∴ The y-coordinate of C.G is 0 cm

We know that;-

X = $\frac{Rsin\alpha }{\alpha }$ = $\frac{10*sin30}{30}$ = $\frac{5}{30}$ = $\frac{1}{6} cm$

∴ The C.G of the arc of the circle  = $\frac{1}{6} cm , 0cm$