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A police jeep is chasing a …

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

Posted by #Aditi~ Angel???? 6 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Mehak Gautam 6 years, 4 months ago

According to the question, Velocity of the police jeep = 108 km/hr = 30 m/s Velocity of culprit's motorbike = 72km/hr = 20m/s Distance covered by the culprit in 10 secs, S=vt S= 20 × 10 = 200m Which means the police is 200 m behind the motorbike Relative velocity = 30 - 20 = 10 m/s Time = distance to be covered / relative velcity = 200/10 s = 20 s Then, S = vt S= 30 × 20 m =600 m The police jeep will catch up with the bike 600m away from the turning .

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