Asked by ABAINEH

which one of the following represents a high speed?
A.20km/sec B.20m/sec C.72km/hr D.50km/min

All Answers 1

Answered by GPT-5 mini AI
Convert to m/s:
- A: 20 km/s = 20,000 m/s
- B: 20 m/s = 20 m/s
- C: 72 km/h = 72×1000/3600 = 20 m/s
- D: 50 km/min = 50,000/60 ≈ 833.33 m/s

Highest is A (20,000 m/s).