Question

A body covered a distance of 6 m on completing half revolution on circular path. The ratio of distance to displacement will be
7 : 2
22 : 7
11 : 7
2 : 7

Answer 1

Answer:

11:7

Explanation:

Distance for a revolution=2πr

half revolution=2πr/2= πr =6m(Given)

Given, πr=6m

r= 6/π=

6×7/22= 42/22m

= 21/11m

Displacement =2r

2×21/11= 42/11m

ratio:

6:42/11

= 6÷42/11

= 6×11/42

= 11/7

= 11:7