Question

Why are passengers travelling in a double decker bus allowed to stand in a lower deck, but not in the upper deck?

Answer 1

Stability and Centre of gravity:

1. The passengers travelling in a double-decker bus are allowed to stand on a lower deck, but not on the upper deck, because of the centre of gravity of the bus shift to some more height. it reduces the stability. It makes the passengers difficult to stand and makes them fall.
2. It is because the stability of a body decreases with the increase in the height of the body.