Speed and Velocity

The surface speed for tool and cutter grinding is in the range of ______.

What would be the effect on air on the droplet of rain?

What are possible units for tangential velocity?

A velocity-time graph can provide you with ___________.

A bus travels at a speed of $50 \mathrm{km}/\mathrm{h}$ for $12 \mathrm{minutes}$ and then at a speed of $40 \mathrm{km}/\mathrm{h}$ for the next $18 \mathrm{minutes}$. The total distance covered by the bus during this time is _____.

Cotyledons are also called-