A truck has wheels which are 112cm in diameter, how many complete revolutions does each wheel make in 20 minutes when the truck is travelling at a speed of 66km/hr?
Answers
Answered by
2
Answer:
625 revolutions
Step-by-step explanation:
no of revolutions= distance travelled/circumference
= 66x20/60|/2x22/7x56x100x100
=66x20/60x1/2x7/22x100x100/56
=12.5x50
=625
Answered by
4
Answer:
Step-by-step explanation:
distance covered in 1 rotation =2πr=2*22*56/7=352 cm=3.52m
66km/hr=1100m/min
no of rotations per min=1100/352
then rotations in 20 min =20*110000/352
=6250
thus no of rotations =6250
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