Question

When a stationary car starts suddenly, the passengers are jerked...Explain?

Answer 1

Hint:If a body's position does not change over time in relation to an observer, it is said to be at rest (or a reference point). The seats at a dinner table, for example, are at rest with respect to the dining table; similarly, riders on a travelling bus are said to be at rest with respect to the same bus's driver and their roles do not change with respect to the driver.

Complete answer:
Rest: If a body's position does not change over time in relation to an observer, it is said to be at rest (or a reference point). The seats at a dinner table, for example, are at rest with respect to the dining table; similarly, riders on a travelling bus are said to be at rest with respect to the same bus's driver and their roles do not change with respect to the driver.

Motion: When a body's position varies over time in relation to an observer, it is assumed to be in motion (or a reference point). In the same way as the blades of a revolving fan, the hands of a running wall clock, a spinning top, and satellites are all in motion with respect to a fixed axis, the riders on a travelling bus are said to be in motion with respect to an observer standing outside the bus.

Newton's First law of Motion: Newton's first rule states that whether a body is at rest or moves in a straight line at a constant pace, it can remain at rest or continue to move in a straight line at a constant speed until acted upon by a force. The law of inertia is the name given to this postulate.

Inertia: The resistance of any physical object to any transition in velocity is known as inertia. Changes in the object's speed or direction of motion are used. The propensity of objects to continue travelling in a straight line at a constant pace while no forces act on them is one example of this property.

Passengers like to relax as the vehicle moves forward due to the property of inertia.However, it is moving ahead with the vehicle. As a result, the rider will experience a forward shake.

Note: The resistance of any physical object to any transition in velocity is known as inertia. Changes in the object's speed or direction of motion are used. The propensity of objects to continue travelling in a straight line at a constant pace while no forces act on them is one example of this property.