Find the angle in radians in the figure below if S10 and r7

Find the angle, in radians, in the figure below if S-10 and r7. 10 Ob. 10 7 c. 10 d. 17 7 e. 10

Solution

s = 10 , r = 7

theta = s / r

theta = 10 /7 radians

option c is correct

2) amplitude = 5

period = 10

2pi / w = 10

w = pi/ 5

hence, equation becomes

d = 5 sin ( pi/5 t )

option b is correct