A current production model with the PACCAR engine requires DAVIE, as stated previously. It's a program which gets installed into a computer, and you'll also need a diagnostic head.. for DAVIE, you can use either the PACCAR VCI, or NexIQ (I tend to prefer the latter, as they're less trouble-prone, and can also read ABS codes... not sure if they offer any advantage with EBS systems used in Euro trucks). If you're using a 2014 engine, then you'll need Davie 4, which the speed parameters are set in a preprogrammed software update... the software updates use planned obsolescence so that they will expire and need to be updated again.
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Extremely fast: 1 hour = 3600 seconds speed = distance/time = 1 mi / 45 s = 1/45 mi/s = 1/45 mi/s x 3600 s/hr = 3600/45 mi/hr = 80 mph!
1/45 m/s
1 minute = 60 seconds 1 hour = 60 mins → 45 mins 45 seconds = 45 + 45/60 mins = (45 + 45/60)/60 hours = 61/80 hours distance = speed × time → distance = 56 mph × 61/80 hours = 42.7 miles.
Time = Distance/Speed = 6/45 hours = 8 minutes.
20 km / 45 minutes = 0.444 km/min 0.444 km/min * 60 min/hr = 26.7 km/hr