Kinematics Question 328

Question: A thief it’s running away on a straight road on a jeep moving with a speed of 9 m/s. A police man chases him on a motor cycle moving at a speed of 10 m/s. If the instantaneous separation of jeep from the motor cycle is 100 m, how long will it take for the policemen to catch the thief

Options:

A) 1 second

B) 19 second

C) 90 second

D) 100 second

Show Answer

Answer:

Correct Answer: D

Solution:

Relative speed of police with respect to thief $ =10-9=1m/s $

Instantaneous separation = 100 m

Time = $ \frac{distance}{veclotiy}=\frac{100}{1}=100\sec . $



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