167/308 seconds ≈ 1.22 seconds.
1 hour = 3600 seconds
1 miles = 5280 feet
⇒ 28 miles = 28 x 5280 feet
= 147840 feet
⇒ mph = 147840 feet ÷ 1 hour
= 147840 ÷ 3600 feet/second
= 616/15 ft/s
time = distance ÷ speed
= 50 feet ÷ 28 mph
= 50 feet ÷ (616/15 ft/s)
= 375/308 seconds
≈ 1.22 seconds
0.41 seconds.
2.56 seconds, approx.
At 30 mph it takes about one second to travel 45 feet.
~3 seconds
4.5 seconds.
It takes 51.43 seconds to travel 2,640 feet at 35 mph.
3.409090.... seconds
1.28 seconds.
22.7 seconds.
0.38 seconds.
7.58 seconds.
6.82 seconds.
0.41 seconds.
3.41 seconds.
1.065 seconds.
6.82 seconds.
2.56 seconds, approx.