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Art [367]
3 years ago
11

Plzz answer question( b) it is urgent​

Mathematics
1 answer:
CaHeK987 [17]3 years ago
6 0

Answer:

Speed = 16 km per hour

Speed = 4\frac{4}{9} meter per second

Step-by-step explanation:

b). Total distance covered to and fro = 12 + 12

                                                        = 24 km  

    Total time taken to cover this distance = 1.5 hours

    Since, speed = \frac{\text{Distance traveled}}{\text{Time taken}}

                           = \frac{24}{1.5}

                           = 16 km per hour

     Since, 1 km = 1000 m

     And 1 hour = 3600 seconds

     16 \frac{\text{km}}{\text{hour}} = 16 × \frac{1000}{3600} meter per second

                 = \frac{160}{36}

                 = \frac{40}{9}

                 = 4\frac{4}{9} meter per second

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