Home Physics Motion in a Plane

Motion in a Plane

Scalar and vector quantities; position and displacement vectors, general vectors and their
notations; equality of vectors, multiplication of vectors by a real number; addition and
subtraction of vectors, relative velocity, Unit vector; resolution of a vector in a plane,
rectangular components, Scalar and Vector product of vectors.
Motion in a plane, cases of uniform velocity and uniform acceleration-projectile motion,
uniform circular motion.


In physics, we can classify quantities as scalars or vectors. Basically, the difference is that a direction is associated with a vector but not...

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...

Motion in a Plane

In this section, we shall see how to describe motion in two dimensions using vectors. Position Vector and Displacement: The position vector r of a particle...


A scalar quantity is a quantity with magnitude only. It is specified completely by a single number, along with the proper unit. Examples are: the...