A bicyclist rides 2.20 km due east, while the resistive forcefrom the air has a magnitude of 8.36 N and points due west. Therider then turns around and rides 2.20 km due west, back to herstarting point. The resistive force from the air on the return trip has a magnitude of 8.36 N and points due east.   a) find the work done by the resistive force during the roundtrip.

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