Published on July 23, 2017
The popcorn case and pulley receive rotation from car engine.
The right wheel losses traction, slips. Due to the disavantage of a standard (open) drive, the moment delived to the left wheel reduces to null so it does not rotate.
To overcome this situation the driver closes the clutch (on the right) to deliver moment to both wheels and thus they rotate with the same velocity.
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