500ft/s是多少m/s？
500ft/s = 152.4m/s
是152.4m/s，所以说成152m/s也没问题——四舍五入的误差在0.5%以内。
反过来，500m/s是多少ft/s？
500m/s = 1,640.4199ft/s
计算公式: m/s = ft/s × 0.3048
该数值前后的 ft/s → m/s
50 ft/s15.24m/s
100 ft/s30.48m/s
150 ft/s45.72m/s
200 ft/s60.96m/s
250 ft/s76.2m/s
300 ft/s91.44m/s
350 ft/s106.68m/s
400 ft/s121.92m/s
450 ft/s137.16m/s
500 ft/s152.4m/s
550 ft/s167.64m/s
600 ft/s182.88m/s
650 ft/s198.12m/s
700 ft/s213.36m/s
750 ft/s228.6m/s
800 ft/s243.84m/s
850 ft/s259.08m/s
900 ft/s274.32m/s
950 ft/s289.56m/s
1,000 ft/s304.8m/s