Question

plzz give answer of all..​

Answer 1

Answer:

Step-by-step explanation:

!) We know Speed = Distance / Time

Distance = 950 m = 950/1000 km= 0.95 km

Time = 5 min = 0.083 hrs

Speed = 0.95 / 0.083 = 11.45 km/hr

2) Speed = distance / time

Didtance = 144 km = 144* 1000 m = 144000 m

Time = 2 hrs 50 mins (from 7.15 to 10.05) = 60+60+50 mins = 170 mins

∴ Speed = 144000 / 170 = 847.05 m/min = 50.88 km/hr

3) Speed = distance / time

Distance = 500 m =500/1000 km= 0.5 km

Time = 100 sec = 0.027 hrs

∴Speed = 0.5 / 0.027 = 18.52 km/hr

Hope this helps!!

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