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1 hour = 60 x 60 = 3600 sec 5 hours = 5 x 3600 = 18000 sec 30 min = 1800 sec Therefore 5 hours and 30 minutes = 18000 + 1800 = 19800 sec
60 sec = 1 minute 60 min = 1 hour 3600 sec = 1 hour one mile/sec = 3600 mph - pretty fast!
1 min = 60 sec 1 hour = 60 min = 60 × 60 = 3600 sec → 1 sec = 1/3600 hr distance = speed × time = 45 mph × 1 second = 45 mph × 1/3600 hr = 45 × 1/3600 miles = 1/80 mile = 1 chain = 22 yards = 66 feet
1 min. = 60 sec. 60 min. = 1 hr. 1 hr. = 3600 sec. 24 hr. = 1 day 1 day = 86,400 sec. 7 days = 1 week 1 week = 604,800 sec. 13 weeks = 7,862,400 sec.
1 min = 60 sec 30 min = 1800 sec