Τετάρτη, 8 Δεκεμβρίου 2010

KINEMATICS (MOTION SPEED VELOCITY)

 To Remind

Distance: Distance is a scalar quantity representing the interval between two points. It is just the magnitude of the interval. 

Displacement: Displacement can be defined as distance between the initial and final point of an object. It is a vector quantity having both magnitude and direction.
Remark: Here the displacement is zero and the distance is |FG|+|GH|+|HF|.


Speed: Speed can be defined as “how fast something moves” or it can be explained more scientifically as “the distance covered in a unit of time”. Speed is a scalar quantity.
speed




Velocity: It can be defined as “speed having direction” or displacement in a unit of time. Velocity is a vector quantity and it has both magnitude and direction.
velocity



Acceleration: We can easily define acceleration as “change in velocity”. This change can be in the magnitude (speed) of the velocity or in the direction of the velocity.
acceleration




Equations of Linear Motion
linear motion equations






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