Question

If x ms-1 = y kmph then x/y is

Answer 1

18/5....................................

Answer 2

Answer:

5/18

Explanation:

x/y = kmph/ms^-1

x/y = kmh^-1/ms^-1

= 1000m 3600s^-1/ms^-1                (as 1 km is 1000m and 1 hour^-1 is 3600s^-1)

x/y = 1000m/3600s^-1

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                  ms^-1

and cancel ms^-1 with m from 1000m and s^-1 from 3600s^-1

so we get 5/18