5-3 Newtons second law (5.3)

Second law of Newton (5.3)

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Second law of Newton (5.3)

Slide 1 - Diapositive

Slide 2 - Vidéo

Lesson goals:

- What is inertia

- Apply Newton's second

law of motion

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Inertia

An object with a greater mass opposes changes in in motion. This means that:

- An object accelerates slower

- An object needs more time to slow down

- An object has more difficulty to change

its direction

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Slide 5 - Vidéo

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Newtons second law

The second law of newton explains the relationship between:

_{The resultant force, mass and acceleration}

F^{​ r e s ​ ​} = m \cdot a

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F_res = resultant force (N)

m = mass (kg)

a = acceleration (m/s²)

F^{​ r e s ​ ​} = m \cdot a

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Definition of Newtons second law

1N is the foce needed to accelerate an object with a mass of

1 kg by 1 m/s².

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Now try

Question 26, 27 and 28 of the digital method.

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How was the lesson? Do you understand Newton's second law now?

Slide 16 - Question ouverte