The diameter of a wheel of a car is 56 cm. Calculate the number of times the wheel will rotate in travelling through a distance of 1.56 km.
Answers
Answered by
9
Answer:
Given ⇒
diameter = 56cm
radius = 56/2 = 28cm
distance = 1.56 km
circumference of circle = 2πr = 2 *π*28 = 56*22/7= 176
total rotations = 156000/ 176 = 886.14
ur answer is 886 rotations
hope it helps u
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Answered by
8
ANSWER-
We have,
Diameter of car wheel =56cm.
Radius = d/2 = 56/2 =28cm.
to convert 28cm to m,
r= 28/100m
=0.28m.
to convert 0.28m to km,
r= 0.28/1000
=0.00028km.
Now,
Circumference of the wheel in km/s =2πr
circumference=2×3.14×0.00028
circumference=0.0017584km
therefore,
Distance to the cover =1.056km.
Now, number of revolutions= 0.0017584/1.056
=600.40
≈600...... ans
Hence, this is the answer.
HOPE IT HELPS U.
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