F = ma (AQA A-Level Mathematics): Quizzes

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F = ma
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According to Newton's Second Law, what is acceleration proportional to?

The force applied to the object

When multiple forces act on an object, which force determines the acceleration?

The resultant force

What is true about an object moving at constant speed?

It has no resultant force acting on it

Under what condition will an object accelerate?

If a force is applied

In Example 1, what is the resultant force in the ii-direction (3N right, 9N left)?

6 N6 \, \text{N}

For a 3 kg particle with resultant force (6,−11)(6, -11) N, what is the ii-component of acceleration?

2 ms−22 \, \text{ms}^{-2}

What is the weight of an 8 kg particle using g=9.8 ms−2g = 9.8 \, \text{ms}^{-2}?

78.4 N78.4 \, \text{N}

In the parachute example, what is the resultant force on the particle (weight 78.4N, resistance 40N)?

38.4 N38.4 \, \text{N}

What is the acceleration of an 8 kg particle with resultant downward force of 38.4 N?

4.8 ms−24.8 \, \text{ms}^{-2}

For an angled force FF, what is the horizontal component?

Fcos⁡(θ)F \cos(\theta)

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Newton's Second Law

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Further Forces & Newton's Laws

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Newton's Second Law

Further Forces & Newton's Laws

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Newton's Second Law

Further Forces & Newton's Laws

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