A thief is running away on a straight road in jeep moving with a speed of 9 ms-1 A police man chases him on a motor cycle 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

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19s

90s

100s

answer is D.

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Detailed Solution

The relative velocity of policeman w.r.t. thief =10-9=1 m/s.∴Time taken by police to catch the thief =1001=100s

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