Physics
A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to

Outward pull on him
Change in acceleration
Inertia of motion
Change in momentum

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Physics
For an ideal gas, which one of the following statements does not hold true?

The potential energy of the gas molecules is zero
There is no interactive force between the molecules.
The speed of all gas molecules is same
The kinetic energies of all gas molecules are not same

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