Suppose a body that is acted on by only two forces, is accelerated. For this situation, mark the incorrect statement(s) :

Options

A. The body cannot move with constant speed
B. The velocity can never be zero
C. The sum of two forces cannot be zero
D. The two forces must act in the same line

Answer

A, B, D

Explanation

Under the action of two forces if the body is accelerating, it mean net force is acting on body and it can never attain a constant velocity or speed. [Provided initial velocity is eithr zero or its direction is same as that of acceleration.]
If the two force are equal then for the present situation they can't act along the same line, but if forces are unequal then they may act along the same line.