Question

The second's hand of a clock is 6 cm long. The speed of the tip of the second's hand is?

Answer 1

answer is the speed is 10

Answer 2

Answer:

The speed of the tip of a second's hand of a clock is 0.62 cm/sec.

Explanation:

Radius of path of second's hand of a clock = 6 cm

Time taken by the second's hand of a clock to complete one revolution = 60 seconds

Speed of the tip of the second's hand =?

The speed of the tip of second's hand is calculated by the equation:

$v = \frac{2\pi r}{T}$

Here,

v = Speed of the tip of the second's hand

r = Radius of path of second's hand of a clock

T = Time taken by the second's hand  

Value of pi, π = 3.14

So,

$v = \frac{2 * 3.14 * 6}{60}$

v = 0.62 cm/sec

RESULT: The speed of the tip of second's hand is 0.62 cm/sec.