Part A The sports car shown in (Figure 1) has been designed so that the 260-kg engine E and 165-kg transmission I have been placed over the front and rear wheels, respectively. Their mass centers are located at GE and GT. The mass center of the remaining 512-kg body and frame is located at Gb If power is supplied to the rear wheels only, determine the shortest time it takes for the car to reach a speed of 80 km/h, starting from rest. The front wheels are free rolling, and the coefficient of static friction between the powered wheels and the road is μ, = 0.32. Neglect the mass of the wheels and driver. Express your answer to three significant figures and include the appropriate units. Figure 0.60 m 0.40 m 0.55 m 1.46 m- НА ? t = Value Units 1 of 1 Submit Request Answer Provide Feedback Next >

Part A The sports car shown in (Figure 1) has been designed so that the 260-kg engine E and 165-kg transmission I have been placed over the front and rear wheels, respectively. Their mass centers are located at GE and GT. The mass center of the remaining 512-kg body and frame is located at Gb If power is supplied to the rear wheels only, determine the shortest time it takes for the car to reach a speed of 80 km/h, starting from rest. The front wheels are free rolling, and the coefficient of static friction between the powered wheels and the road is μ, = 0.32. Neglect the mass of the wheels and driver. Express your answer to three significant figures and include the appropriate units. Figure 0.60 m 0.40 m 0.55 m 1.46 m- НА ? t = Value Units 1 of 1 Submit Request Answer Provide Feedback Next >

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.60P: The force P applied to the brake handle enables the band brake to reduce the angular speed of a...

See similar textbooks

Similar questions

A skier of mass 'M' Kg starts fron rest down the hill inclined at angle 0', He skies distance 'D' meter down the hill and then coasts tor *X' meter along level snow uptil he stops. Find the coefficient of kinetic friction between the skier and the snow.
A brake test for an automobile is conducted. During the brake test, the automobile of mass 1800 kg (including driver) is travelling at the speed of 110 km/hr as it passes point A, and the car descends a hill of 1in 2 (Sine). The driver applies brakes so as to bring the car speed at B to 50 km/hr. The total frictional resistance to motion is 235 N. Using Work-Energy Method, Calculate the following required to bring the car to 50 km/hr from 110 km/hr in 210 m (From Point A to Point B) B Determine the Value of Total Energy about Point A TE= Determine the Value of Total Energy about Point B TEb= Determine the Value of Breaking Force needed Fb= N A
Learning Goal: To be able to set up and analyze the free-body diagrams and equations of motion for a system of particles. • Part A - Finding the acceleration of the mass on the inclined plane Consider the mass and pulley system shown. Mass m- 39 kg and mass my = 15 kg The angle of the inclined plane is given, and the coeficient of kinetic friction botween mass my and the incined plane is a-0.12 Assume the pulleys are massless and frictionless. (Eigure 1) What is the acceleration of mass mg on the indined plane? Take positive acceleration to be up the ramp Express your answer to three significant figures and include the appropriate units. > View Available Hint(s) ? Figure 1 of 1> Value Units Submit Previous Answers X Incorrect: Try Again: 4 attempts remaining • Part B-Finding the speed of the mass moving up the ramp after a given time P Type here to search 83°F Mostly clear A O 8 ENG v?assignmentProblemID=13281351 v(3 s) = Value Units Submit Part C - Finding the distance moved by the…
The lower block of mass m2 = 3.2 kg is pulled on by a rope with a tension force of 28 N. The upper block has mass m1 = 1.8 kg. The coefficient of kinetic friction between the lower block and the surface is 0.32. The coefficient of kinetic friction between the lower block and the upper block is also 0.32. What is the acceleration of the 3.2 kg block?
For the delivery truck shown: The mass of the truck is 4000 kg. The horizontal distance from the rear tires to the center of mass, G, is L1 = 3 m The vertical distance from the ground to G is d = 3m The horizontal distance from the rear tires to the front tires is L2 = 5 m. d The delivery truck is traveling at 20 m/s when the brakes are applied. The truck skids to a stop, so that the friction force is applied to the tires by the road.* The coefficient dynamic friction is uk = 0.60 *If it did not skid, then the friction force would be between the brake pads and the brake disc, which would be above the road. Calculate the distance that the truck travels before it stops. Use Σ MA = Ia + d x m*a for the following: 'O' Calculate the left side of this equation: Σ MA G L1 → L2 Calculate the right side of this equation: I*α + d x m*a d+ x m*a is from r x m*a (cross product), so, determine the sign by considering the cross product. Set the left and right right sides equal to each other and…
Question 1 The slide crack mechanism of a sports motorcycle is shown in Figure 1. The net force experienced by the vertically positions piston is 2257 N. Whereas, the piston has a diameter, and the stroke length is 100 mm and 120 mm, respectively. The linear velocity of the piston is 5.3 m/s and the angle between the line of action of the piston and the crack (OB) is 0 = 20°. 250 mm B 60 mm Figure 1: slide crack mechanism of a sports motor bicycle 1.1. If the mass of the piston is 1.1 kg and the force acting vertically downward on the piston due to the internal combustion in the cylinder is 5500 N, calculated gas pressure resulting from the combustion. 1.2. Create a vector diagram to calculate the speed of the crank if the piston speed is 5.3 m/s vertically downwards. 1.3. What is the acceleration of the piston?
A 5-kg block is acted on a 30-N Tensile force that acts 40 degrees from the horizontal. The kinetic coefficient of friction is 0.25. What is the acceleration of the block? Draw the FBD of the given.
1. A 25-kg box is attached to two light ropes and is being pulled in a frictionless, horizontal floor. The two forces pulling the box is given by: Fjis 15 N due east, and F,is 10 N due north. A. What are the forces acting on the box? Identify whether contact or noncontact force. B. Identify the action-reaction pairs. C. What is the acceleration of the box?
A space station shaped like a giant wheel has a radius 98 m and a moment of inertia of 5.01 x 108 kg-m2. A crew of 150 lives on the rim, and the station is rotating so that the crew experiences an apparent acceleration of 1 g. When 100 people move to the center of the station for a union meeting, the angular speed changes. What acceleration is experienced by the managers remaining at the rim? Assume that the average mass of each inhabitant is 65.0 kg. m/s2
Q1: A mass mis tied to a string and made to move in avertical circle of radius r with constant speed v. For this, caculate the tention in the string at the lowest and highest point of the circle, also findout the minimum speed so that the string never goes slack.
Determine the acceleration of each weight in the figure, assuming the pulleys to be weightless andfrictionless.
The two blocks started at rest. The surface of the inclined plane is frictionless. (note: neglect mass and friction of the pulley) Given: Weight of A=230 lb. Weight of B=300 Ib. Calculate: a) acceleration of A (ft/s"), 30° with the horizontal b) Acceleration of B (ft/s"), downward c) the tension in the cable (Ib.) B 30°