Physics/Motion

From Wikibooks, the open-content textbooks collection

Jump to: navigation, search

Contents

[edit] Motion

Motion refers to movement of an object from one position to another position or displacement of position with time

[edit] Types of Motions


[edit] Speed

Suppose there is a Force that moves an object over a distance S in time T . Then the ratio of Distance over Time can be used to describe object's Speed of movement

Speed = \frac{Distance}{Time}

Expressed in mathematical Formula

V = \frac{D}{T}

Since Distance is measured in Meter ; m ; and Time is measured in Second ; s . Therefore , Velocity is measured in Meter per Second ; m/s

[edit] Velocity

Velocity is used to indicates Speed and Direction of movement .

Mathematical Velocity can be expressed as a function of time like V(t) and the Direction of movement is indicated by Vector that has Length equals to Speed of movemnet and a pointing arrow to indicate direction of movement

If movement from left to right is --> . Then movement from right to left is <-- .

V(t) --> indicates Velocity of an object's movement from left to right agaist time
V(t) <-- indicates Velocity of an object's movement from right to left agaist time