Homework Help: Physics

Posted by James on Friday, December 17, 2010 at 4:19pm.

A truck traveling at a constant speed of 40.0 km/h applies its brakes and comes to a complete stop in 5.0 s. The truck starts again and accelerates at a constant rate of 0.80 m/s2. After restarting, how far does the truck travel before reaching its original speed of 40.0 km/h?

Physics - bobpursley, Friday, December 17, 2010 at 6:12pm
I am not certain what How far means? The total distance, or just the distance accelearting?

If the distance accelerating

Vf^2=2ad
change km/hr to m/s, solve for d.

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