Question

What will be the approximately. Average
speed of the Hour hand of a clock is its length is hundred. mm

Answer 1

Answer:

We know,

Speed =

Time

Distance

Here distance will be the circumference of the circle that second-hand makes in one complete revolution. Therefore, Distance = 2πr(circumference)

r (radius) = 10 cm (length of second hand)

Distance =2×3.14×10cm

Distance = 62.8 cm

Now, the time it takes to complete one full revolution by second hand = 60 seconds

Speed =

60

[62.8cm]

seconds

Speed = 1.0466

second

cm

Therefore, Speed of the tip of 10 cm long second hand of a clock is 1.0466

second

cm

Answer 2

Answer:

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