While I was in my automatic car, I was on a steep upwards slope and I took my foot off of the brake and put it onto the gas pedal.
My car first slid backwards, but as the engine applied power to the wheels, the car slows down its descent and starts climbing up the slope.
My loose understanding of a transmission is that the crankshaft is geared down to the driveshaft. However, it seems like it would be impossible for something like this to happen since the wheels have a negative rotation.
How is this possible?