Solution:-
Given
grade = 3%
Tire penetration = 2 inches
Rolling resistance factor = 40 + 30 * (penetration in inches)
= 40 + 30 *(2)
= 100 lb/ton
Let weight of vehicle = P tons
Rolling resistance of vehicle = Rolling resistance factor * weight of vehicle
= 100 P ( lb )
Grade resistance factor = 20 * grade(%)
= 20 * 3
= 60 lb/ton
Grade resistance = grade resistance facor * weight of vehicle
= 60 P (lb)
Total rolling resistance = 100 P + 60 P = 160 P ( lb ) Abswer
2, what is the total rolling resistance for a dirt haul road going up a 3%...
please help me.
Problem 2: Evaluate cost and production using a 3-cy hoe to load wet gravel (2980 lb/lcy) into 14 cy trucks. Assume a bucket fill factor of 105% and that the hoe bucket swing cycle time is 24 sec. the truck empty weight is 36860 lb, and a rated payload of 40000 lb. Dump time will be 1.3 min. the haul distance is 2.5 miles from the pit to the plant up a 3% grade. The rolling resistance...
Could you please help with this? I will rate with a thumbs
up.
Prob. 2 (50): A vehicle has a total weight of 3800 bs and the front to rear weight distribution ratio is 49/51. The wheel base is 110 inches and the gravity center height is 14 inches. The tire radius is 11 inches. The rolling and air resistances are neglected in the brake design. The split point is selected at point A that corresponds to a value of...
Please help asap. I will rate with a thumbs up.
Prob. 2 (50): A vehicle has a total weight of 3800 bs and the front to rear weight distribution ratio is 49/51. The wheel base is 110 inches and the gravity center height is 14 inches. The tire radius is 11 inches. The rolling and air resistances are neglected in the brake design. The split point is selected at point A that corresponds to a value of road traction coefficient...
Could you please help I will rate with a thumbs up.
Prob. 2 (50): A vehicle has a total weight of 3800 bs and the front to rear weight distribution ratio is 49/51. The wheel base is 110 inches and the gravity center height is 14 inches. The tire radius is 11 inches. The rolling and air resistances are neglected in the brake design. The split point is selected at point A that corresponds to a value of road traction...
Prob. 2 (50): A vehicle has a total weight of 3800 lbs and the front to rear weight distribution ratio is 49/51. The wheel base is 110 inches and the gravity center height is 14 inches. The tire radius is 11 inches. The rolling and air resistances are neglected in the brake design. The split point is selected at point A that corresponds to a value of road traction coefficient of 0.45. The split pressure p, and the proportioning factor...
Prob. 2 (50): A vehicle has a total weight of 3800 lbs and the front to rear weight distribution ratio is 49/51. The wheel base is 110 inches and the gravity center height is 14 inches. The tire radius is 11 inches. The rolling and air resistances are neglected in the brake design. The split point is selected at point A that corresponds to a value of road traction coefficient of 0.45. The split pressure p, and the proportioning factor...
(11%) Problem 6: To maintain a constant friction of the road (the rolling resistance). Assume that the drag coefficient for a Toyota Camry is 0.28, while for a Hummer it is 0.64. speed, the force provided by a car's engine must equal the drag force plus the force of The density of air at this temperature is 1.21 kg/m Randomized Variables S66 km/h S92 km/h @theexpertta.com- tracking id: 4N89-19-F9-48-AF40-16204. In accordance with Expert TA's Terms of Service, copying this information...
027 10.0 points The engine of a 2000 kg Mercedes going up Pike's Peak delivers energy to its drive wheel at the rate 100 kW Neglecting air resistance, what is the largest speed the car can sustain on the steep Pike's Peak mountain highway, where the road is 30° to the horizontal? The acceleration due to gravity is 10 m/s2. 1. 20 m/s 2. 100 m/s 3. 40 m/s 4. 0 m/s 5. 10 m/s
Gradeability Computations for a combine You are developing the propulsion system for a new combine harvester which will need to operate at least part of the time in hills. The field conditions in which this new combine must operate vary widely, but for the sake of analysis, we will assume the combine must climb a 10% grade and also overcome the rolling resistance of the tires as the machine propels up the slope. The coefficient of rolling friction is assumed...
please answer all questions
P6.2-3) A RWD 2011 Corvette Coupe's technical specifications are listed below Assuming that the air drag is constant, applied at the center of mass, and equal to 100 lb and the rolling resistance coefficient is f 0014, what is the cars maximum acceleration on level ground and driving uphill on a road with a 10% grade? Estimate the friction characteristics as that between rubber and dry asphalt and note that the total rolling resistance is equal...