Passengers on a boat should not be allowed to stand up on the boat while crossing a river. Why?

Passengers on a boat should not be allowed to stand up on the boat whi

1.	Passengers on a boat should not be allowed to stand up on the boat while crossing a river. Why?
Answer» Solution :The centre of GRAVITY of a BOAT with its passengers should be as low as POSSIBLE so that it may always be in a stable EQUILIBRIUM. But it the passengers stand up on the boat, the centre of gravity of the system also moves up. The system then attains an unstable condition. Then, EVEN for a very small tilting the boat may capsize. So the passengers on a boat are not allowed to stand up while crossing a river.