Question

An athlete covers 1500 m in 4 minutes. Calculate his speed in m/s and km/hr.​

Answer 1

Answer:

Speed = Distance/Time

           = 1500/4

            = 375 metres

375 m/s = 0.375 km/h

Answer 2

Answer:

speed of the athlete = 6.25m/s or 22.5km/hr

Step-by-step explanation:

time taken by the athlete to cover 1500m = 4min = 4*60s

                                                                      = 240s

=> speed of the athlete = d/t = 1500m/240s

                                               = 6.25m/s

the same question distance,d = 1500m = 1500/1000 km = 1.5km

and time taken to cover 1.5km = 4min = 4/60 hours = 1/15 hours

so, speed = d/t = 1.5km/1/15 hours

                         = 1.5*15km/hr

                         = 22.5km/hr