The explanation of, why we get thrown back with a jerk when the statio

The explanation of, why we get thrown back with a jerk when the stationary bus we are sitting in starts moving forward is given by :

Zeroth law of gravity

Newton's first law

Newton's second law

Newton's third law

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Answer is Wrong!

This question was previously asked in

UPSC CAPF – 2009

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The explanation of why you get thrown back with a jerk when a stationary bus starts moving forward is given by Newton’s first law.

Newton’s first law of motion, also known as the Law of Inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. When the bus is stationary, you are also at rest relative to the ground. When the bus suddenly accelerates forward, your body, due to inertia, tends to maintain its state of rest. This relative motion causes you to feel a backward jerk with respect to the accelerating bus.

Newton’s second law relates force, mass, and acceleration (F=ma). Newton’s third law states that for every action, there is an equal and opposite reaction. The concept of inertia directly explains the resistance to changes in motion, which is fundamental to the first law. The “Zeroth law of gravity” is not a standard physics term; gravity is described by Newton’s law of universal gravitation or Einstein’s theory of general relativity.

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