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Over [174]
3 years ago
9

A car travelling at 90km/h is 500m behind another car travelling at 70km/h in the same direction. How long will it take the firs

t car to catch the second?
Mathematics
1 answer:
MAXImum [283]3 years ago
6 0

Relative speed: 90 - 70 = 20 km/h

s = d ÷  t

t = d ÷  s

t = 500 m ÷ 20 km/h x 1000 m/h x 1 ÷ 60 hr/mins

t = 1.5 minutes.

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