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

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F = ma
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Newton's 2nd Law: acceleration is proportional to what?

The force applied to the object

With multiple forces, which force determines acceleration?

The resultant force

Condition required for an object to accelerate

A force must be applied

Object at constant speed: resultant force value?

Zero (no resultant force)

Newton's Second Law formula

F=maF = ma

Standard value of gg (gravitational acceleration)

9.8,extms−29.8 , ext{ms}^{-2}

How to find resultant force from multiple forces?

Resolve in each direction, sum forces in ii and jj

Tool to visualise all forces acting on an object

Free body diagram

Components of angled force FF at angle heta heta

Fx=Fcos(heta)F_x = F cos( heta), Fy=Fsin(heta)F_y = F sin( heta)

Apply F=maF = ma with multiple directions: equation for each?

sumFx=maxsum F_x = ma_x and sumFy=maysum F_y = ma_y

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Forces

Newton's Second Law

Further Forces & Newton's Laws

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Forces

Newton's Second Law

Further Forces & Newton's Laws

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Forces

Newton's Second Law

Further Forces & Newton's Laws

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Forces

Newton's Second Law

Further Forces & Newton's Laws

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