GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it applies a force in the opposite direction of the passenger’s motion
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it applies a force in the same direction as the car’s motion
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it applies a force less than the force of the moving passenger
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it applies a force greater than the force of the moving car
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Detailed explanation-1: -While the driver with an airbag may experience the same average impact force as the driver with a good seatbelt, the airbag exerts an equal pressure on all points in contact with it according to Pascal’s principle. The same force is distributed over a larger area, reducing the maximum pressure on the body.
Detailed explanation-2: -A seatbelt expands the stopping force required to decelerate the rider across their body. This stops the body from hitting the steering column or windshield of a high-speed car, which could easily result in injury or even death.
Detailed explanation-3: -Seat belts stop you tumbling around inside the car if there is a collision. However, they are designed to stretch a bit in a collision. This increases the time taken for the body’s momentum to reach zero, and so reduces the forces on it.