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Drag Force - PowerPoint PPT Presentation


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Balanced and Unbalanced Forces. When the forces acting on the car are balanced , the resultant force is zero. It stops accelerating and moves at a constant speed.

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Balanced and Unbalanced Forces

When the forces acting on the car are balanced, the resultant force is zero. It stops accelerating and moves at a constant speed.

When the force produced by the engine is transferred to the rear wheels (via the transmission system) the forces on the car are unbalanced and it accelerates.

Drag forces, due to friction and air resistance, act in the opposite direction.

When the brakes are applied, the drag force increases and the car decelerates.

The resultantforce decreases and the acceleration decreases.

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Drag Force

(Thrust) Forward Force

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