Which of the following speeds is maximum ? Option 1: 7.3 m/s Option 2: 28.4 km/h Option 3: 6.5 m/min Option 4: 0.0073 km/s

Answer: 28.4 km/h. Solution: Convert all to m/s. (1) 7.3 m/s. (2) 28.4x5/18=7.89 m/s. (3) 6.5/60 0.108 m/s. (4) 0.0073x 1000=7.3 m/s. Maximum is 28.4 km/h.

Arithmetic

Time, Speed & Distance

Easy

Which of the following speeds is maximum ?

7.3 m/s

28.4 km/h

6.5 m/min

0.0073 km/s

✅ Correct Option: 2

Convert all to m/s. (1) 7.3 m/s. (2) $28.4\times\frac{5}{18}=7.89$ m/s. (3) $6.5/60\approx 0.108$ m/s. (4) $0.0073\times 1000=7.3$ m/s. Maximum is 28.4 km/h.

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Which of the following speeds is maximum ?

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