Question

why was Gandhiji against untouchability​

Answer 1

Change in velocity of minute hand of clock

In the following question,

Find the change in velocity of the tip of the minute hand of a clock of radius 10 cm in 45 min.

The answer is given .

How can I get this answer ?

Kindly explain.

By saying "change in velocity" is this question referring to the change in direction of the minute hand ? As the tip of the minute hand is moving at constant speed there is no change in velocity in terms