The brakes of a truck cause it to slow down by applying a retarding force of 6480 N to the truck over a distance of 944 m. What is the work done by this force on the truck?
I know that the equation we have to use is Work=Force x Distance x cos angle
I have no idea what the angle is, so help please!
I know that the equation we have to use is Work=Force x Distance x cos angle
I have no idea what the angle is, so help please!
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in this case the angle is 180 deg, and cos 180 = -1
the angle is measured between the direction of the displacement and the direction of the force
here, the force acts in the direction opposite the motion, so the angle is 180 deg and cos theta = -1
therefore, the work = 6480N x 944m x (-1)
the angle is measured between the direction of the displacement and the direction of the force
here, the force acts in the direction opposite the motion, so the angle is 180 deg and cos theta = -1
therefore, the work = 6480N x 944m x (-1)