A vector is added to an equal and opposite vector of similar nature, forms a ........
Unit vector
Position vector
Null vector
Displacement vector
(c)
State, for each of the following physical quantities, if it is a scalar or a vector : volume, mass, speed, acceleration, density, number of moles, velocity, angular frequency, displacement, angular velocity.
Find the unit vector of a vector whose co-ordinates are $(8,\, 6)$.
Pick out the only vector quantity in the following list:
Temperature, pressure, impulse, time, power, total path length, energy, gravitational potential, coefficient of friction, charge.
Explain null vector. Explain the physical significance of null vector.
Which of the following is a scalar quantity
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