The physical quantity that remains zero for an object moving with a uniform velocity is (in ideal case):
momentum
Velocity
External force
Mass
When the external force is zero, a body continues to move with a uniform velocity.
if the velocity is uniform then which physical quantity is always zero?
An electron moving with uniform velocity in x direction enters a region of uniform magnetic field along y direction. Which of the following physical quantity (ies) is (are) non-zero and remain constant?