A tractor is travelling on a slope pulling a load by a tow cable with a tension of 6,650 lbs. The tractor's load weighs
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A tractor is travelling on a slope pulling a load by a tow cable with a tension of 6,650 lbs. The tractor's load weighs
A tractor is travelling on a slope pulling a load by a tow cable with a tension of 6,650 lbs. The tractor's load weighs 70,000 lbs. If the rolling resistance of the road is 110 lbs./ton, what is the percent grade of the slope (6pts) and is the tractor travelling up or downgrade (4 pts)?
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