Question

In a two dimensional motion, instantaneous speed
is a positive constant. Then which of the following
are necessarily true?
(a) The acceleration of the particle is zero.
(b) The acceleration of the particle is bounded
(c) The acceleration of the particle is necessarily
in the plane of motion.
(d) The particle must be undergoing a uniform​

Answer 1

Answer:

(c) The acceleration of the particle is necessarily

in the plane of motion.