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(a) Express 72 km/h in m/s. (b) Expres...

(a) Express 72 km/h in m/s.
(b) Express 25 m/s in km/h.

Text Solution

Verified by Experts

`(a) 72 "km/h" = 72 xx (5)/(18) m//s = 20 m//s`
`(b) 25 "m/s" = 25 xx (18)/(5) "km/h" = 90 "km/h"`
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