4. The rear-wheel-drive pickup truck, with its center of gravity at G, is to negotiate a bump from a standing start in the position shown. The static and kinetic coefficients of friction between the tires and the pavement are 0.18 and 0.15, respectively. Determine the largest slope angle 0 that can be negotiated, assuming that the drive wheels are (a) spinning; and (b) not spinning. 12 in. 60 in. 40 in.

A 2000-lb bike with a rear wheel drive has awheelbase of 10 ft. The c.g. is 3 ft above thepavement and 4 ft ahead of the rear wheels.The coefficient of friction is 0.60 between thetires and the pavement. Determine the maximum acceleration theauto could have when moving along a levelground.a. 40.21 ft/s2      b. 42.90 ft/s2c. 43.56 ft/s2      d. 45.02 ft/s2

A highway curve has a radius of 122m. Find the angle of super elevation in degrees so that there will be no lateral pressure between the tires and the roadway at a speed of 30 mph.

Problem 27: A highway curve has a super elevation of 7°. Find the radius of the curve so that there will be no lateral pressure between the tires and the roadway at a speed of 40 mph?

The radius of a highway curve is 120m, and has an angle of 9.31° from the horizontal. The center of gravity of the car is located 0.80m above the roadway and the distance between the two front wheels is 1.2m. If the car has a total weight of 15KN, a. Determine the normal acceleration and the velocity (in kph) of the car before overturning? b. Find the maximum velocity of the car could move along the curve so that there will be no outstanding pressure between the tires and the roadway. c. If the coefficient of kinetic friction is 0.60, what is the maximum velocity (in kph) of the car without sliding?

(b) A vehicle of mass 1200 kg negotiates a banked curve of width 20 m at a designed velocity of 20 m/s. If the centrifugal ratio for the design of that curve is 0.125; calculate (i) The angle of inclination of road due to the banking. (ii) The amount of super elevation introduce as a results of the banking. (Acceleration due to gravity (g) = 9.81 m/s² )

A standard HL-93 Truck impends to overturn on a super elevation highway curve at a speed if 120 mph. The height of its center of gravity is 2.9 m and the distance of the two front tires is 2.9 m. The superelevation is 10 degrees. •Compute the radius of the curve assuming no skidding resistance. •Compute the radius of the curve assuming no skidding resistance. •Determine the value of left reaction on wheels due to centrifugal force, RCL.

The radius of a highway curve is 120 m, and has an angle of 9.31° from the horizontal. The center of gravity of the car is located 0.80 m above the roadway and the distance between the two front wheels is 1.2 m. If the car has a total weight of 15 KN. a. Determine the normal acceleration and the velocity (in kph) of the car before overturning. b. Find the maximum velocity of the car could move along the curve so that there will be no outstanding pressure between the tires and the roadway. c. If the coefficient of kinetic friction is 0.60, what is the maximum velocity (in kph) of the car without sliding.

3// Consider a roadway with a design speed of 60 km/h, for which a maximum super elevation rate of 6% has been selected. f =0.12...find the minimum radius of curvature..

1. A curve has a super elevation of 15° with angle of friction 10°. What is the radius of the curve such that there will be no lateral pressure between the tires and the roadway at a maximum speed of  60mph? 2. A vehicle travels along a curve of radius 200 m banked at an angle of 15°. If the static coefficient of friction between the road and the tires is 0.25, determine the largest constant speed at which the vehicle will not be thrown outward the banked curve.