First slide

Relative velocity in 1-d

Question

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

Moderate

A

1s
B

19s
C

90s
D

100s

Solution

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

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App