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.
-
Complete the following table: 4-Quarter Look-Back DeposiorPeriod Tax Liability Monthly Semiweekly Payroll Paid November On Wednesday On Thursday On Friday On Saturday On Sunday Tax Paid by $28,000...
-
Determine the number of pairwise comparisons of treatment LO4 means.
-
NPV and AARR, goal-congruence issues. Nate Stately, a manager of the Plate Division for the Great Slate Manufacturing Company, has the opportunity to expand the division by investing in additional...
-
What will happen to the expected return on a stock with a beta of 1.5 and a market risk premium of 9% if the Treasury bill yield increases from 3 to 5%? (assuming the market risk premium is not...
-
Following are age and sex data for 20 midlevel managers at a service company: 34 F, 49 M, 27 M, 63 F, 33 F, 29 F, 45 M, 46 M, 30 F, 39 M, 42 M, 30 F, 48 M, 35 F, 32 F, 37 F, 48 F, 50 M, 48 F, 61 F. A...
-
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...
-
Jayhawk Oil Company has a working interest in a property. In addition to the 1/5 royalty, Jayhawk agreed to pay the royalty owner a minimum royalty of $400/month. Gas production on the lease began in...
-
Pacifico Company, a U.S.-based importer of beer and wine, purchased 1,200 cases of Oktoberfest-style beer from a German supplier for 264,000 euros. Relevant U.S. dollar exchange rates for the euro...
-
Finding Confidence Intervals. In Exercises 9-16, assume that each sample is a simple random sample obtained from a population with a normal distribution. Body Temperature Data Set 5 "Body...
-
19 Part 2 of 2 1.25 points Skipped Required information Problem 6-4A & 6-5A (Algo) [The following information applies to the questions displayed below.] Gerald Utsey earned $48,400 in 2021 for a...
-
Describe equilibrium constants with words and equations. is the ratio of the concentrations of products to the concentration of reactants present in a reaction mixture when chemical equilibrium is...
-
Pronghorn Inc. acquired 20% of the outstanding common shares of Gregson Inc. on December 31, 2019. The purchase price was $1,133,000 for 51,500 shares, and is equal to 20% of Gregson's carrying...
-
What are the underlying principles and values in design thinking and design leadership approaches?
-
An item of depreciable machinery was acquired on 1 July 2009 for $120,000 by cash It is expected to have a useful life of 10 years and zero salvage value On 1 July 2012, it was decided to revalue the...
-
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.
-
Difference between Operating Leverage and Financial Leverage
-
bpmn diagram for misc purchases
-
You have $55,000. You put 15% of your money in a stock with an expected return of 10%, $38,000 in a stock with an expected return of 18%, and the rest in a stock with an expected return of 22%. What...
Study smarter with the SolutionInn App