Homework Help: physics

Posted by faisal on Saturday, December 17, 2011 at 12:24pm.

A police car moveing at 140 km/h is changing a lorry moveing at 120 km/h.If the initial distance betwen them is 500m,how many minutes later and at what distance from its initial position does the police carb catch the lorry

physics - drwls, Saturday, December 17, 2011 at 1:06pm
The distance between them decreases ar 20 km/h rate. What is 0.5 km/20 km/h?

0.025 h = 1.5 minutes.

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