Wheel of a bus is 1 meter diameter and rotating at 540 rpm. The speed of the bus is
a 101.73 km/hr
b. 102.73 km/hr
c. 120 km/hr
d. 79.50 km/hr
Answers
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4
solution:--
circumference of wheel
= pi× diameter
= 3.14×1= 3 . 14 m
= distance covered in 1 minute
= circumference×rpm
= 3.14×540= 1695.6 m
speed of the bus per hour
= 1695.6× 60
= 101736 m/h
= 101 . 736 km/hour
option (a) is correct
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