Posted by **John** on Monday, February 25, 2008 at 6:47pm.

A truck driver slams on the brakes and skids to a stop through a displacement of delta x.

(a) IF the truck has twice the mass, by what factor does the stopping distance change?

1) 0.25

or

2) 1

or

3) 4

(b) If the initial velocity of the truck were halved, by what factor would the stopping distance change?

1) 2

or

2) none of these

or

3) 4

or

4) 0.25

or

5) 1

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