Vector: A quantity that requires both magnitude and direction to be completely defined is called a vector.
Kinetic Energy: It is defined as the energy possessed by a body when it is in motion, i.e velocity is not 0. When velocity is 0, Kinetic Energy is essentially 0.
Kinetic Energy is given by :
where m = mass, v = velocity.
Mass is a scalar quantity and the velocity which is a vector is squared which makes it a scalar quantity as well. Therefore, Kinetic Energy is a scalar.
