Define the scalar product and obtain the magnitude of a vector from it .

The magnitude of a vector cannot be :

Define the scalar product of two vectors .

Find the scalar components and magnitude of the vector joining the points P(x_(1),y_(1),z_(1))andQ(x_(2),y_(2),z_(2)) .

Obtain the scalar product of two mutually perpendicular vectors .

The magnitude of scalar product of two vectors is 8 and of vector product is 8sqrt(3) . The angle between them is:

Read each statement below carefully and state with reasons , if it is true of false : (a) The magnitude of a vector is always a scalar , (b) each component of a vector is always a scalar , (c ) the total path length is always equal to the magnitude of the displacement vector of a particle . (d) the average speed of a either greater or equal to the magnitude of average velocity of the particle over the same interval of time , (e ) Three vectors not lying in a plane can never add up to give a null vector .

Obtain scalar product in terms of Cartesian component of vectors .

Given that vecA+vecB+vecC=0 , out of three vectors two are equal in magnitude and the magnitude of third vector is sqrt2 times that of either of two having equal magnitude. Then angle between vectors are given by

The sum of three vectors shown in Fig. 2 ( c) . 77. is zero . . (a) What is the magnitude of the vector vec (OB) ? (b) What is the magnitude of the vector vec (OC) ?

Momentum is product of velocity and magnitude of velocity”. True or False ?