Question

The tip of a seconds hand of a clock takes 60 seconds to move once on a circular circular dial of a clock if the radius of the dial of the clock with 10.5 cm calculate the speed of the tip of a second hand of the clock given pie is equals to 22 upon 7

Answer 1

Explanation:

since r=10.5cm

perimeter =2*22÷7*10.5

=16.79cm

since angular velocity depend up on angle so in once a circle angle made by second hand is 360 so

$\alpha = angle \div time$

$\alpha = 360 \div 60$

$\alpha is \: given \: by$

6rad/sec