Resistance to the motion of an automobile consists of road friction, which is almost independent of speed,
Question:
Resistance to the motion of an automobile consists of road friction, which is almost independent of speed, and air drag, which is proportional to speed-squared. For a certain car with a weight of 12000 N, the total resistant force F is given by F = 300 = 1.8v2, with F in Newton’s and y in meters per second. Calculate the power (in horsepower) required to accelerate the car at0.92 m/s2 when the speed is 80 km/h.
Step by Step Answer:
We work this in SI units and convert to horsepower in the last step Th...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
Students also viewed these Mechanics questions
-
The motion of an oscillating flywheel is defined by the relation = 0e??7t/6 sin4t, where is expressed in radians and t in seconds. Knowing that 0 = 0.4 rad, determine the angular coordinate, the...
-
The motion of an oscillating flywheel is defined by the relation = 0e3t cos4t, where is expressed in radians and t in seconds. Knowing that 0 = 0.5 rad, determine the angular coordinate, the...
-
A gasoline tank for a certain car is designed to hold 15 gallons of gas. Suppose that the variable x 5 actual capacity of a randomly selected tank has a distribution that is well approximated by a...
-
In a given week, 12 babies are born in hospital. Assume that this sample came from an underlying normal population. The length of each baby is routinely measured and is listed below (in cm): 49, 50,...
-
Explain how banks used credit default swaps.
-
Why does capital budgeting rely on analysis of cash flows rather than on net income?
-
If you were going to research financial reporting fraud what questions would you like to address?
-
The graph in Figure represents various flows that can occur through a sewage treatment plant with the numbers on the arcs representing the maximum flow (in tons of sewage per hour) that can be...
-
The ANOVA summary table to the right is for a multiple regression model with nine Degrees of Sum of independent variables. Complete parts (a) through (e). Source Freedom Squares Regression 9 90...
-
Giant pharmaceutical manufacturers such as Merck & Company and Pfizer have traditionally relied heavily on the doctor-to-patient channel to promote their products. In essence, this channel structure...
-
A 30 g bullet moving a horizontal velocity of 500 m/s comes to a stop 12 cm within a solid wall. (a) What is the change in the bullet's mechanical energy? (b) What is the magnitude of the average...
-
A locomotive with a power capability of 1.5 MW can accelerate a train from a speed of 10 m/s to 25 m/s in 6.0 min. (a) Calculate the mass of the train. Find (b) The speed of the train and (c) The...
-
Suppose that after monitoring thousands of ball bearings, a manufacturer observes that 0.27% of them are out of spec. Assume that the process mean is 1.5 standard deviations below the target mean....
-
Blossom Company's income statement for the year ended December 31, 2025, contained the following condensed information. Service revenue $848,000 Operating expenses (excluding depreciation) $618,000...
-
7. Calculate the equivalent and total resistance as well as the current in the circuit. Calculate the current and voltage drop across each individual resistor (6 marks) 6.0 V V V = 6.0 V = 6.0 V R =...
-
Taylor suffered a ruptured disc during an automobile accident. On October 26, 1994, he underwent surgery at Louisiana State University Medical Center (LSUMC). After surgery, Taylor began to...
-
A person is driving along a straight highway at a speed of 2 2 . 0 m / s when the traffic light which is 4 0 . 0 m ahead turns yellow. Because of his \"reaction time\", there is a delay of 0 . 1 2 s...
-
Construct a simple basic circuit in which a 6 resistor is connected in series to the battery. Hover the ammeter over a wire near the battery to measure the current. Connect a voltmeter parallel to...
-
A simple random sample of 500 students at a certain college were surveyed and asked whether they were satisfied with college life. Two hundred eighty of them replied that they were satisfied. The...
-
An access route is being constructed across a field (Figure Q8). Apart from a relatively firm strip of ground alongside the field's longer side AB, the ground is generally marshy. The route can...
-
An ice hockey player is moving at 8.00 m/s when they hit the puck toward the goal. The speed of the puck relative to the player is 29.0 m/s. The line between the center of the goal and the player...
-
The shore of the ocean is very rocky at a particular place. The rocks form a cave sloping upward from an underwater opening, as shown in Figure Q19.13a. (a) Inside the cave is falls with the tides, ,...
-
In Colonization: Second Contact (Harry Turtledove, Ballantine Publishing Group, 1999), the Earth has been partially settled by aliens from another planet, whom humans call Lizards. Laboratory study...
-
The pendulum of a certain pendulum clock is made of brass. When the temperature increases, does the period of the clock increase, decrease, or remain the same? Explain.
-
Homework: M6: Cost of Capital and WC Managment Chapters Score: 0 of 4 pts P13-7 (similar to) 8 of 12 (0 complete) Save HW Score: 0%, 0 of 55 pts Question Help Average accounts payable cycle. Use the...
-
Chapter 3 Discussion 33 unread replies.33 replies. Research available PoE PSE (power sourcing equipment) and PDs (powered devices). Find one POE PSE and find three devices that are considered PoE...
-
Continuing with the Filthy Money Forecasting personal finance app scenario first described in chapter 2, and relating to previous chapters' exercises, imagine these scenarios: 1. You're about to...
Study smarter with the SolutionInn App