Question

A body moves in a circular path of radius
R in 10s. The ratio of the magnitude
displacement to the distance travelled
after 5s is (π = 22 17)​

Answer 1

Answer:

7:11

Explanation:

To complete one round,time taken=10s

Distance coverd in one round=Circumference of circle

                                                 =22/7(R)(2)

                                                 =44R/7

Distance  travelled  in 5s =1/2 (The distance coverd in one round)

                                         =1/2(44R/7)

                                         =22R/7

Displacement after 5 seconds=Length of diameter

                                                 =2*R

                                                  =2R

The ratio of the magnitude  displacement to the distance travelled

=2R/(22R/7)

=7/11

=7:11