Gradient resistance for a vehicle depends on which of the following factors
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Weight of the vehicle
Size of the vehicle
Width of tyres
Speed of the vehicle
Weight of the vehicle
Broadly the resistances can be categorized into the following categories:
Air resistance/ Aerodynamic drag: When a body travels within a dense medium, the molecules of the medium collide with the moving object and thereby absorb some of the energy. This is felt as a resistance to the moving object. If the medium is denser, then the resistance is more
Gradient resistance: When the vehicle travels uphill, a component of its weight works in a direction opposite to its motion. If some energy is not supplied to overcome this backward force, then the vehicle would slow down, stall and roll backwards.
Rolling resistance : When a vehicle rolls, it rolls with its tires in contact with the road surface. The relative motion of two hard surfaces produces a friction
Rolling resistance is composed of the following components:
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