Homework Help: physics

Posted by Cory on Wednesday, November 18, 2009 at 9:08am.

The driver of a 1024 kg truck traveling 32.6 m/s North on I-77 has to make a sudden stop. If it requires a distance of 57.1 m for the truck to stop, use conservation of energy to find the net force acting on the truck.

physics - drwls, Wednesday, November 18, 2009 at 9:57am
Force x distance = work done against friction = initial kinetic energy

Solve for the force

F = (1/2) M Vo^2/X

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