From the perspective of driving physics, which force is responsible for modifying the magnitude of speed (accelerating or braking) when taking a curve?

Question

DentroTest · Accepted Answer

The correct answer is tangential force. To understand this, we must distinguish between the forces acting in a curve:  Centripetal Force: This is responsible for changing the vehicle's direction so it can follow the curve (pulls towards the center). It does not change the speed, only the direction. Tangential Force: This acts along the line of the vehicle's movement. If this force is applied in the direction of travel, the vehicle accelerates; if applied against it, it brakes. Therefore, it is the sole force responsible for the variation in speed (magnitude). Normal Force: This is the force exerted by the ground on the vehicle to support its weight, acting perpendicularly, and does not influence forward speed.

From the perspective of driving physics, which force is responsible for modifying the magnitude of speed (accelerating or braking) when taking a curve?

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