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Grade: 9

                        

What is a vector in physics? and position vector also?

3 years ago

Answers : (3)

Arun
24742 Points
							
Vector, in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude
 
Displacement is defined as the distance, in any direction, of an object relative to the positionof another object. Physicists use the concept of a position vector as a graphical tool to visualize displacements. A position vectorexpresses the position of an object from the origin of a coordinate system
3 years ago
shekharnandanwar
109 Points
							A vector is defined as a quantity which has both magnitude and direction.A position vector indicates the position of a point in a coordinate system. the co-ordinates are referred to as x,y,z .
						
2 years ago
Sanju
106 Points
							
Vectors are physical quantities that have both magnitude and direction. For example, velocity, acceleration, force...
Position vectors are used to describe the postion of objects moving in a plane. In order to specify the position accurately, we need to define a base point-say origin O of the co-ordinate system. Let “P” be the position of an object in x-y plane at time ‘t’. A line joining the origin O and point P with an arrow mark at the head of this line (ie, OP) is the position vector. It is generally  denoted by the letter ‘r’. 
 
 
2 years ago
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