Resolution of a vector in a plane and Unit Vector
Resolution of a Vector in a Plane:
Let a and b be any two nonzero vectors in a plane with different directions and let A...
Vectors
In physics, we can classify quantities as scalars or vectors. Basically, the difference is that a direction is associated with a vector but not...
Kinematic Equations of Motion
For objects in uniformly accelerated rectilinear motion, the five quantities, displacement x, the time took t, initial velocity v0, final velocity v and acceleration...
Acceleration
The time rate of change of velocity is called acceleration.
Its unit is m/s2. Its dimensional formula is . It is a vector quantity.
Acceleration can...
Velocity
The rate of change of displacement of an object in a particular direction is called its velocity.
Its unit is m/s. Its dimensional formula is...
Speed
The time rate of change of position of the object in any direction is called the speed of the object.
Its unit is m/s. It...
Motion
"An object is said to be in motion if its position changes with time".
The concept of motion is a re’ live one and a...
Dimensions of Physical Quantities
The nature of physical quantities is described by its dimensions. All the physical quantities represented by derived units can be expressed in terms of...
Significant Figures
Significant Figures: As discussed above, every measurement involves errors. Thus, the result of measurement should be reported in a way that indicates the precision...
Combination of Errors
The combination of Errors:
Error of A Sum or A Difference
Error of A Product or A Quotient
...