Uniform and Non-uniform Motion

An athlete completes one round of a circular track of diameter $200 \mathrm{m}$ in $40 \mathrm{s}$. What will be the distance covered and the displacement at the end of $2 \min 20 \mathrm{s}$?

A farmer moves along the boundary of a square field of side $10 \mathrm{m}$ in $40 \mathrm{s}$. What will be the magnitude of displacement of the farmer at the end of $2 \min 20 \mathrm{s}$ from his initial position?

Suppose you go a tower $h \mathrm{m}$ high and throw a ball horizontally with a velocity $v \mathrm{m}/\mathrm{s}$. What will be the shape of the path followed by the ball? While falling the motion of the ball will be a combination of two independent motions. Name these motions?