Terminal Velocity (OCR GCSE Physics A (Gateway Science Suite)): Flashcards

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Terminal Velocity
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Terminal velocity

Constant speed when gravity is balanced by air resistance

Acceleration at terminal velocity

Zero - object stops accelerating

Resultant force at terminal velocity

Zero

Factors affecting terminal velocity

Mass, shape, and fluid

Initial free-fall acceleration

9.8 m/s29.8 \text{ m/s}^2

Skydiver forces at terminal velocity

Air resistance equals gravity

Forces on falling objects in fluid

Drag forces oppose motion

V-t graph gradient for falling object

Steep initially, then decreases to flat

V-t graph at terminal velocity

Flat gradient (no acceleration)

Average speed formula

Total DistanceTotal Time\frac{\text{Total Distance}}{\text{Total Time}}

Acceleration formula

a=v−uta = \frac{v - u}{t}

Equation of motion

v2=u2+2asv^2 = u^2 + 2as

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