Question

state which of the following situations are possible and give an example of each of these:-
(a) a body moving with constant acceleration but with zero velocity.
(b) A body moving horizontally with acceleration in vertical direction.
(c) A body moving with a constant speed in an accelerated motion.​

Answer 1

1) Possible

When a body is thrown vertically upward in space, then at the highest point, thebody has zero velocity but the acceleration of the body will be equal to theacceleration due to gravity. ... 

2)

possible

A body moving horizontally with an acceleration in vertical direction is possible in a projectile motion.

in projection bod follows parabolic path with acceleration acting verticallly downwards(gravity) at time of decsent n spplied acc.(time of acent)

3)

Yes, for e.g. in a circular motion if one is moving with a constant speed, the motion is still said to be accelerated motion as the dirction of velocity changes at every point of the path.