ï»¿ A police jeep is chasing a culprit going on a motorbike. The motorbike crosses a turning at a speed of 72 km/hr. the jeep follows it at a speed of 108 km/hr; crossing the turning 10 seconds later than the bike. Assuming that they travel at a constant speeds, how far from the turning will the jeep catch up with the bike.Â  from Physics Motion in A Plane Class 11 Manipur Board

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A police jeep is chasing a culprit going on a motorbike. The motorbike crosses a turning at a speed of 72 km/hr. the jeep follows it at a speed of 108 km/hr; crossing the turning 10 seconds later than the bike. Assuming that they travel at a constant speeds, how far from the turning will the jeep catch up with the bike.Â

Speed of the motorbike Â = 72 km/hr Â = 20 m/sÂ

Speed of police jeep = 108 km/hr = 30 m/sÂ

Let the jeep catch up with the bike after t seconds.Â

Therefore,Â

Â  Â  Â  Â 30 t = 20 ( t + 10)

Â  Â  Â  Â  t = 20 secÂ

Distance travelled by jeep in 20 sec,Â

Â  Â  Â  Â  Â s =30 x 20 = 600 mÂ

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