I want to find out if we have any smart truck drivers coming up into the profession. In the diagram below, a truck is moving along a level road at exactly 30MPH. As the truck goes up the hill, he maintains his speed at an average of 30MPH up the first 1/2 mile of the hill. What must be the average downhill speed in order to average 60MPH for his trip across the entire mile? Of course I realize no truck could probably do this, but theoretically speaking, what would his average downhill speed be for the last 1/2 mile in order to average 60MPH for the entire mile?
This hill is perfectly symmetric although it isn't in my drawing.
INCORRECT ANSWER: 90MPH
New Driver IQ Test
Discussion in 'Questions From New Drivers' started by Endzone, Jul 12, 2010.
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to average 60 miles per hour for the whole event, it would be 1 mile per minute, except in the 1st half of the trip, averaging 30mph for half a mile would take a minute, so now matter how much power Scotty gives you Captain, you ain't gonna average 60mph for the whole trip!
However if you want to play semantics and median speed.....Endzone Thanks this. -
120 mph down hill?
omg.... don't ask me to do math at the end of a hard day...lol. I can't believe I typed that answer. -
X mph is the answer i got I think. but for me It would be 5 mph up and then 300mph down the hill
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Put me down for 180 miles per hour.
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That was easy enough for you, now for your next challenge:
http://www.thetruckersreport.com/tr...t-everything/115825-iq-test-for-truckers.html -
Well, double huh!
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This stuff makes my brain hurt just looking at it!
Passin Thru Thanks this. -
I'd say, Go United and a steady 530 MPH, avoid all the uphill-downhill. Let the flight computer figure out the optimum climb and descent speed.
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