Arun
Last Activity: 6 Years ago
When a vector is multiplied by a scalar quantity, then the magnitude of the vector changes in accordance with the magnitude of the scalar but the direction of the vector remains unchanged.
Suppose we have a vector →a, then if this vector is multiplied by a scalar quantity k then we get a new vector with magnitude as |−→ka |and the direction remains same as the vector →a if k is positive and if k is negative then the direction of kbecomes just opposite of the direction of vector →a .