Question

a body describing circular path at uniform speed of 2m/s takes 33 seconds to complete 3.5 revolutions . The radius of the circular path is:





(note : i am in 9 class and second pls solve it in detail)

Answer 1

hope this will help you

Answer 2

We can find traveled distance from two ways and after that we can equal those two equation.

• If velocity of the body = 2m/s

                                    time = 33 seconds

            traveled distance = velocity * time

                                         S = 2 m/s * 33 s

                                         S = 66 m ------(1)

• If it completes 3.5 revolutions,

                         1 revolution = 2πr meters

                   3.5 revolutions = 2*(7/22)*r meters

                                         S = 7r/11 m----- (2)

By equating equation (1) & (2),

                          66 =7r/11

                           r = 726/11

                           r = 66 m

Answer : radius of the circular path = 66 m