Calculus of the physical world (1 Viewer)

Peek-a-boo!!!

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Can someone explain the rate and acceleration and displacement plzz!!!!Im confused.!! The topic is so wordy. How can i pick out the main key words for the a question?
 
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pLuvia

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Considering this:
Displacement = x
Velocity = v
Acceleration = a

In calculus terms
v=dx/dt
a=dv/dt

The rate means the increase/decrease per time i.e. dr/dt

The rate depends on what the question is asking for
 
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the derivative of the displacement function is the velocity

the derivative of the velocity function is the acceleration

x= displacement
.
x= velocity
..
x= acceleration

e.g: displacement = t(sub)2(/sub) + 5t + 6

therefore, velocity = 2t + 5

and acceleration = 2

in this case, the acceleration is a constant, although this is not always the case, depending on the function
 

Riviet

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Velocity - rate of change of displacement with respect to time, ie dx/dt

Acceleration - rate of change of velocity with respect to time, ie dv/dt

How can i pick out the main key words for the a question?
Usually the most important words will be the nouns, such as displacement, velocity, acceleration, simple harmonic motion. Pay attention to adjectives and verbs like upwards, downwards, constant, accelerating.
 

cagedflame

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haha i dropped maths! no need for it! so not stressed now ha
 

Riviet

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Peek-a-boo!!! said:
What happen to the object moving to the left of the origin or the right of the origin?
What is that mean?
left <----3---2---1-origin--1--2--3----> right
 

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