Question

m in circumference makes 7 revolutions in 4 seconds, then the speed
15. If the wheel of the engine of a train 4
(in km/hr) of the train is
(a) 27
(b) 28
(c) 29
(d) 30
18)
(Hint. x m/s =
km/hr, i.e., to change speed in m/s to km/hr)
5
)​

Answer 1

Answer:

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