Chapter 14, Problem 36P

Look at the picture

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 (m/s2) and the velocity (in kph) of the car before overturning? Assume that friction is great enough to prevent sliding. b. Find the maximum velocity of the car could move in the curve so that there will be no pressure between the tires and the roadway, kph. c. What is the velocity of the car to prevent sliding up if the coefficient of kinetic friction is 0.60?

A pilot weighs 150 lb and is traveling at a constant speed of 120 ft/s. Determine the normal force he exerts on the seat of the plane when he is upside down at A. The loop has a radius of curvature of 400 ft. IA 400 ft

The rod of the fixed hydraulic cylinder is moving to the left with a speed of 94 mm/s and this speed is momentarily increasing at a rate of 440 mm/s each second at the instant when SA = 355 mm. Determine the tension in the cord at that instant. The mass of slider Bis 0.77 kg, the length of the cord is 950 mm, and the effects of the radius and friction of the small pulley at A are negligible. Find results for cases (a) negligible friction at slider B and (b) p = 0.42 at slider B. The action is in a vertical plane. 220 mm Answers: 0.77 kg B (a) Negligible friction: T= i (b) Uk=0.42: T= i N N

4. The vehicle is designed to combine the feel of a motorcycle with the comfort and safety of an automobile. If the vehicle is traveling at a constant speed of 80 km/h along a circular curved road of radius 100 m, determine the tilt angle 0 of the vehicle so that only a normal force from the seat acts on the driver. Neglect the size of the driver.

The 0.36-Mg car travels over the hill having the shape of a parabola. When the car is at point A, it is traveling at 25.06 m/s and increasing its speed at 499 mva? Deformine the resultant normal force (kN) at this instant. Neglect the size of the car. 20 (1) 60 m Seve A 6400

The "flying car" is a ride at an amusement park which consists of a car having wheels that roll along a track mounted inside a rotating drum. By design the car cannot fall off the track, however motion of the car is developed by applying the car's brake, thereby gripping the car to the track and allowing it to move with a constant speed of the track, vt = 3 m/s. The rider applies the brake when going from B to A and then releases it at the top of the drum, A, so that the car coasts freely down along the track to B (0 = π rad). Neglect friction during the motion from A to B. The rider and car have a total mass of 390 kg and the center of mass of the car and rider moves along a circular path having a radius of R = 9.8 m. (Figure 1) Figure R B

The super-container vessel has a total mass displacement of 23000 long tons. This vessel towed by a tugboat with α=20⁰ angle with horizontal. If a constant tension is applied as F=320 kN by the tugboat, please calculate the time to bring the vessel to a speed of 2 knot from the rest.  At these low speeds, please neglect the hull resistance that created by the motion.  Note:  (1 long tons = 1016.05 kg, 1 knot=1.151 mi/hr= 0.5144 m/s)

During a brake test, the rear-engine car is stopped from an initial speed of 98 km/h in a distance of s = 54 m. If it is known that all four wheels contribute equally to the braking force, determine the braking force F at each wheel in N. Assume a constant deceleration for the 1,446-kg car. Use g = 9.81 m/s?