Calculate the speed of a train ms^(-1) which covers 972 miles in 27 ho

1.	Calculate the speed of a train ms^(-1) which covers 972 miles in 27 hours (1 mile = 1.60 km)
Answer» Solution :`("972 MILES")/("27 hrs")=(("972 miles")xx("CONVERSION factor"))/(("27 hrs")xx("conversion factor"))` `= (("972 miles")xx(1.6xx10^(3)m))/(("1 mile"))xx(1)/(("27 hrs"))xx(("1 HR"))/((3.6 xx10^(3)s))=16.0 "m s"^(-1)`.

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