Question

why should a seat belt have a wide surface area

Answer 1

Answer:

seat belt should have wide surface area to minimize pressure and to reduce forces of impulse

hope it helps

Answer 2

Seat belt have a wide surface area so that they reduce the pressure exerted on a person's body.

Pressure:

• Compressive force acting normally on a given region is what is referred to as pressure.
• The newton per square metre (N/m²) is the SI unit for pressure.
• Pascals (Pa) are another unit of pressure.

Mathematically, pressure can be denoted by:

P = F/A

Factors affecting pressure on a solid:

1. Force acting on the body: the greater the force is that acts upon the body, the more is the pressure exerted on it.
2. The surface area of the surface of contact: the greater the surface area of the surface in contact, the lesser is the pressure.

The pressure exerted by the seat belt would hence decrease with an increase in the surface area of the belt.

Hence, seat belts have wide surface area.

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