Question

Express the following speed in m/sec.
(i) 36 km/hr
(ii) 98 km/hr
(iii) 144 km/hr

Answer 1

Answer:

i. 36 × 5/18 = 10 m/s

ii. 98 × 5/18 = 27.222..... or 27.00 m/s (approx.)

iii. 144 × 5/18 = 40 m/s

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Answer 2

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Explanation:1) 36km/hr

= 36 × 5/18

= 10 m/s

2) 98×5/18

=22.78m/s

3)144 ×5/18

= 40m/s