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NCERT Exemplar Solutions Class 7 Science Solutions for Motion and Time - Exercise in Chapter 13 - Motion and Time

Question 4 Motion and Time - Exercise

A bus travels 54 km in 90 minutes. The speed of the bus is

(a) 0.6 m/s

(b) 10 m/s

(c) 5.4 m/s

(d) 3.6 m/s

Answer:

The answer is (b) 10 m/s

Explanation:

Speed = Distance / Time

Distance = 54km = 54 x1000 = 54000m

Time = 90 minutes = 90x60= 5400s

Speed = 54000/5400 = 10 m/s

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