The diameter of the tyre of a truck is 140 cm.
Find how many times the tyre will rotate in
order to cover a distance of 220m.
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Diameter of the wheel =140 cm
Radius =70 cm
Now,
1 round distance =2πr=2×
7
22
×70=440 cm
Since distance traveled in 60 mnts=66×1000×100 cm
Therefore, distance traveled in 1 mnts=
60
66
×1000×100 cm=110000 cm
Revolution in 1 mnt=
440
110000
=250
Hence, 250 revolution per minute must the wheel make in order to move at a speed of 66 km/hr.
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0
Answer:
I am also confused about this.
someone please say answer
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