The circumference of a circle with a diameter of 10 cm is 31.4cm.
The circumference of a circle is its edge or the measurement of its entire arc.
The circumference of a circle with radius is
.
The circle in question has a diameter of 10 cm.
The radius of a circle's diameter is equal to its length divided by two. Consequently, the given circle's radius is 5 cm.
If we assume that π=3.14, then the given circle's circumference will be equal to 2×π×5. Consequently, 31.4 cm is the required circumference.
As a result, a circle with a diameter of 10 cm has a 31.4 cm circumference and it has been expressed in three significant figures.
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Answer:
F = 41,954 N
Explanation:
given,
mass of bucket = 580 Kg
length of the cable = 20 m
velocity = 40 m/s
angle made = 38.0°
T cos 38° = m g..............(1)
T sin 38^0 = \dfrac{mv^2}{l} + F......(2)
dividing equation (2) by (1)
F = -46400 + 4445.36
F = -41,954 N
hence, the force is acting in the opposite direction as assumed.
F = 41,954 N