Question

a body moves with a uniform speed along the circumference of a circle of radius 7 cm if it completes one revolution in 11 seconds find its speed

Answer 1

Answer:

given: r = 7cm

t for 1 revolution= 11s

to find: speed

since the radius is 7 cm then circumference of circle will be 2πr = 2×22×7/7

= 44 cm

= 44/100=0.44m

now we know that speed = distance / time

so, speed = 0.44/11= 0.04m/s. ans//

hope it will be helpful !!