Why it is told to tie the roop on the lugagae on the bus

1.	Why it is told to tie the roop on the lugagae on the bus
Answer» The luggage placed on the roof of a bus is not fixed with the bus ,whem the bus starts suddenly the luggage tends to remain at rest due to intertia of rest .so, there is a chance of the luggage will fall towards the back side. Similarly, when the bus stops suddenly the luggage continues to state of motion due to inertia of motion Due to inertia it can fall

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