Q.

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

A. Outward pull on him
B. Inertia of motion
C. Change in momentum
D. Change in acceleration
Answer» B. Inertia of motion
Explanation: This is inertia of direction. It is the ability of body to be in a state of direction of motion for example sun holds planets in a fixed elliptical path .this is one of the examples of inertia of direction. Inertia of direction is non- existent however inertia only apply to a body at rest or moving with a constant velocity. It is the property possessed by a body to resist change.
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