In one dimensional motion, instantaneous speed `v` satisfies `(0 le v lt v_0)`.

In one dimensional motion, instaneous speed v satisfies 0 lev < v_0

In a two dimensional motion, instantaneous speed v_(0) is a positive constant. Then which of the following are necessarily true ?

In a two dimensional motion, instantaneous speed v_(0) is a positive constant. Then which of the following are necessarily true ?