A thief is running away on a straight ro...

A thief is running away on a straight road in jeep moving with a speed of `9 m s^-1`. A police man chases him on a motorcycle moving at a speed of `10 ms^-1`. If the instantaneous separation of the jeep from the motorcycle is 100 m, how long will it take for the police to catch the thief?

1 s

19 s

90 s

100 s

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