The Skater in the Bus Adventure

Imagine a skater wearing in-line skates standing in the middle of the aisle inside a bus and not holding on to anything. As the bus starts moving and pulls away from the bus stop, something interesting happens!

Before the bus starts moving, both the bus and the skater are stationary. However, once the bus begins to move, the skater actually stays right where she is. This may seem counterintuitive, but it's all because of the lack of friction when wearing in-line skates inside the bus.

From the perspective of the people outside on the sidewalk, they would see the skater standing still while the bus moves away from her. On the other hand, the passengers inside the bus would perceive the skater as rolling backward down the aisle, towards the back of the bus.

So, in this gravity-defying scenario, the skater remains stationary inside the moving bus due to the absence of friction between the skates and the bus floor. It's a quirky physics trick that would surely bring a smile to anyone witnessing this unexpected adventure!