If the acceleration of the particle is constant in magnitude but not in direction,what type of path does the particle follow?

Four speed-time graphs are shown below. Which graph represents the following cases?
$(i)$ $A$ ball thrown vertically upwards and returning to the hand of the thrower.
$(ii)$ $A$ body decelerating to a constant speed and then accelerating.

The velocity-time graph (Fig.) shows the motion of a cyclist. Find $(i)$ its acceleration $(ii)$ its velocity and $(iii)$ the distance covered by the cyclist in $15\,s$.

State whether the following statement is true or false:
Kinematics deals with the motion of non-living objects without taking into account the cause of their motion.

What can we conclude about the motion of a body depicted by the following velocity-time graphs?

From the given $v-t$ graph (Fig.),it can be inferred that the object is