Home
Class 12
PHYSICS
A thief is running away on a straight ro...

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

A

1s

B

19s

C

90s

D

100s

Text Solution

Verified by Experts

The correct Answer is:
D
The relative velocity of policeman w.r.t thirf`=10-9=1(m)/(s)`.
`because` Time taken by police to catch the thief`(100)/(1)=100`sec
Promotional Banner

Similar Questions

Explore conceptually related problems

A thief is running away on a straitht road in a moving with a speed of 9 ms^(-1) . A policeman chases him on a motor cycle moving at a speed of 10 ms^(-1) . If the instananeous separation of the jeep from the motor cycle is 100 m , how long will it take for the policeman to catch the thief ?.

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

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

A circular wheel of 0.50 m radius is moving with a speed of 10 ms^(-1) . Find the angular speed.

A motor boat is moving at a steady speed of 20ms^(-1) . If the water resistance on the boat is 6000 N, the power of the engine is ------------kW.

A motor cycle moving with a speed of 5 m//s is subjected to an acceleration of 0.2 m//s^(2) . Calculate the speed of the motor cycle after 10 second, and the distance travelled in this time.

A car is moving with speed 20 ms ^(-1) on a circular path of radius 100 m. Its speed is increasing at a rate of 3 ms^(-2) . The magnitude of the acceleration of the car at that moment is

A car travelling with a velcity of 60 km h^(-1) on a straight road is ahead of a motor cycle travelling with a speed of 76 km h^(-1) . How would the relative velcity be alterd if motor cucle is ahead of car?

A body moves at a speed of 100 ms^(-1) for 10 s and then moves at a speed of 200 m s^(-1) for 20 s along the same direction. The average speed is …………………………….,

A car travelling with a velocity of 50 km h^-1 on a straight road is ahead of a motor-cycle travelling with a speed of 75 kmh^-1 . How would the relative velocity be altered if motor cycle is ahead of car ?