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A skateboarder pushes his foot off the ground with a force of 120N. The skateboard experiences an overall resistance drag (friction on wheels and air

A skateboarder pushes his foot off the ground with a force of 120N. The skateboard experiences an overall resistance "drag" (friction on wheels and air resistance combined) of 80N. Determine the net force on the skate boarder while he's coasting (show all steps)

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