- #1
Chrisleo13
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Homework Statement
A 1270-kg car coasts on a horizontal road with a speed of 18.1 m/s. After crossing an unpaved, sandy stretch of road 28.4 m long, its speed decreases to 11.3 m/s. Was the net work done on the car positive, negative, or zero?
b. Calculate the magnitude of the average net force on the car in the sandy section.
Homework Equations
W = F(delta r)(cos theta)
The Attempt at a Solution
I started looking at it. I understand work but for some reason I am stuck here.