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For what reasons are the wheels of buses and trucks being heavier than the wheels of cars or scooters?

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a

Surface area

b

Friction

c

Pressure

d

Both 1 and 3

answer is D.

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Detailed Solution

The reasons behind the wheels of buses and trucks being heavier than the wheels of cars or scooters are surface area and pressure.
It is known that the pressure exerted by a body is inversely proportional to the surface area. Since the trucks and buses are heavy, to reduce the pressure exerted by them on earth, the wheels are broadened to increase the surface area and to ensure that they move quickly. On the other hand, the scooter and cars have fewer wide wheels because they need more pressure for gripping.

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