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Skittles
Sep13-06, 07:26 PM
I don't understand this:

A slow car moves at a steady 10 km/hr down a straight highway while another car zooms past at a steady 120 km/hr. Which car is has the greater net force on it?

The answer is neither, because the net force on each car is zero.

Why is it zero???

mbrmbrg
Sep13-06, 07:34 PM
Look at the definition of force.