In above problem, if the police man is behind the thief and the initial distacen between them is 10 m, how much time will it take of the policmane to catch the thief?

Explanation

Let the distacne travelled by the thief by d, when the polceman catches him. The distace travelled by the policeman `=(0.1d)` km= (100). Let the time taken be t
`:.2=(d)/(t)`
`d=2t`
`d=(d+0.1)/(t)`
`5=(2t+0.1)/(t)`
`5t=2t+0.13t=0.1`
`t=(0.1)/(3)h`
`h=0.1xx60` minutes
`0.1xx20` minutes =2 mintues