The wheel of a motor cycle is of radius 35 cm. How many rotations per minute must the wheel make so as to keep a speed of 66 kmph?
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4
Circumference = 2πr=44/7×35=220cm
Distance travelled in 1 min= 66000/60= 1100m
Therefore required number of rotation = 1100×100/220 = 500
Distance travelled in 1 min= 66000/60= 1100m
Therefore required number of rotation = 1100×100/220 = 500
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Answered by
8
circumference of wheel=2πr=2×22/7×35
=220cm=2.2m
66kmph=66×1000/60=1100mpm
number of rotation=1100÷2.2=500
I hope it's true
=220cm=2.2m
66kmph=66×1000/60=1100mpm
number of rotation=1100÷2.2=500
I hope it's true
Thank you ! I got d same answer .
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