Questions

When will you say a body is in uniform acceleration?

When will you say a body is in non-uniform acceleration?

A bus decreases its speed from $80 \mathrm{k}\mathrm{m}/\mathrm{h}$ to $60 \mathrm{k}\mathrm{m}/\mathrm{h}$ in $5 \mathrm{s}$. Find the acceleration of the bus.

A train starting from a railway station and moving with uniform acceleration attains a speed $40 \mathrm{k}\mathrm{m}/\mathrm{h}$ in $10 \mathrm{minutes}$. Find its acceleration.