Question

Q.)A pendulum of length 14 cm oscillates
through an angle of 18°. Find the length
of its path.​

Answer 1

Step-by-step explanation:

Answer=4.4cm

# Explaination-

# Given-

r=14cm

θ=18°

# Solution-

Circumference of circle c=2πr

Circumference circle c = 2× 22/7 ×14 = 88cm

Length of the path described by extremity of pendulum is given by-

Length circumscribed by θ = θ/360 × c

Length circumscribed by θ = 18/360 × 88

Length circumscribed by θ = 4.4cm

Length of the path described by extremity of pendulum is 4.4 cm.