Question

Is linear momentum scalar or vector?

Answer 1

1. Physical quantity which has only magnitude is called scalar quantity.
2. Physical quantity which has both magnitude and direction is called a vector quantity.
3. Linear momentum is given by the equation $P=mv$
4. Mass is a scalar quantity and velocity is a vector quantity.
5. Product of scalar quantity and a vector quantity is a vector quantity.

Hence linear momentum is a vector quantity because it has magnitude as well as direction.