Question

The minute hand of a clock is 3 cm in length find the average speed of the tip of the minute hand when it move from the time period of 4:00 a.m. to 4:15 a.m.

Answer 1

Answer:

Here the minute hand has rotated from 4:00am to 4:15am that means it rotatef by 45°Angle .

The distance travelled by tip of the minute hand is the circumference /4

$= > 2\pi \: r$

=> 3.14×3/2.

=>4.71 cm .

Time taken =15 min

Speed of tip of minute hand

= 4.71 cm/15 min

=0.314cm=min