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5 cards from this section. Quick, good the night before a test.
What is the rolling resistance for a vehicle weighing 20 tons with a rolling resistance of 30 kg per ton?
Multiply the gross weight by rolling resistance in kg per ton.
How do you convert 1000 kg into tons?
Divide by 1000.
What is the rolling resistance for a vehicle weighing 60 tons with a rolling resistance of 30 kg per ton?
Remember to multiply weight in tons by resistance kg per ton.
Grade resistance is defined as the force required to do what?
Think about the effects of gravity on slopes.
A vehicle has a total weight of 80 tons with a rolling resistance of 35 kg per ton and is facing a grade resistance of 6% slope. What is the total resistance using these values?
Calculate each resistance type, and add them together.
If a load weighs 25 tons with a rolling resistance of 25 kg per ton and is on a flat road, but needs to transition to a 3% slope. How much additional tractive effort is necessary?
Remember to calculate rolling and grade resistances separately.
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