Respuesta :
56 miles in 4 hours
14 miles/hour
14 *5280/3600
=20.53 ft/sec
1 mile = 5280 ft
1 hour = 3600 seconds
14 miles/hour
14 *5280/3600
=20.53 ft/sec
1 mile = 5280 ft
1 hour = 3600 seconds