At a speed of 20 km h, a 1200 kg car accelerates at 3 m s 2 using 20 kW of power How much power must be expended to accelerate the car at 2 m s 2 at a speed of 40 km h ...

Power is defined in terms of force and speed an ...

At a speed of 20 km/h, a 1200-kg car accelerates at 3 m/s 2 using 20 kW

Question:

At a speed of 20 km/h, a 1200-kg car accelerates at 3 m/s² using 20 kW of power. How much power must be expended to accelerate the car at 2 m/s² at a speed of 40 km/h?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

1st Edition

Authors: Edmund G. Seebauer, Robert L. Barry

See More Books

Question Posted: Jun 30, 2011 01:41 PM

See More Questions

How much voltage must be used to accelerate a proton (radius 1.2 X 10-15m) so that it has sufficient energy to just penetrate a silicon nucleus? A silicon nucleus has a charge of + 14e, and its...
A car driving along a highway at a speed of 23 m/s strays onto the shoulder. Evenly spaced parallel grooves called "rumble strips" are carved into the pavement of the shoulder. Rolling over the...
A star is know to be moving away from Earth at a speed of 4 X 104 m/s. This speed is determined by measuring the shift of the Ha line ( = 656.3nm). By how much and in what direction is the shift of...
Write Python program which implements the following two classical cryptosystem a) Affine Cipher b) Vigenere Cipher Your program should consist of at least five functions: a) Two functions named...
Information on the bond market is widely available in papers like The Wall Street Journal and Barron's. Bond information can also be found online at financial Web sites like finance.yahoo.com and...
Avon's independent audit firm did not report any material weaknesses in Avon's internal control during the course of the FCPA scandal. Define a "material weakness" in internal control and explain...
Figure 20.26 shows the flowsheet for a process for the production of G from A. The feed stream of A (entering through valve V-1) is mixed with a makeup stream of $B$ (entering through valve...
On December 31 of last year, Wolfson Corporation had an inventory of 450 units of its product, which cost $22 per unit to produce. During January, the company produced 850 units at a cost of $25 per...
5. A three-stage, single acting compressor is required to compress 135m of free air per hour from 1bar to 64bar. Prove that with complete intercooling the stage pressure ratio should be equal to the...
A bird is flying in a room with a velocity field of V = (u, v, w) = 0.6x + 0.2t 1.4 (m/s). The room is heated by a heat pump so that the temperature distribution at steady state is T (x, y, z) = 400...
A particle of mass m moves from rest at t = 0 under the influence of a single force of magnitude F. Show that the power delivered by the force at time t is P = F 2 t/m.
A car manufacturer claims that his car can accelerate from rest to 100 km/h in 8 s. The car's mass is 800 kg. (a) Assuming that this performance is achieved at constant power, determine the power...
What are the bond angles predicted by the VSEPR model about the carbon atom in the formate ion, HCO2? Considering that the bonds to this atom are not identical, would you expect the experimental...
In Figure 3-2, what are the effects of a price decrease from $4 per wireless earbud to $2 per wireless earbud on the quantities of wireless earbuds demanded by buyer 1 and by buyer 2 individually and...
Outline the three principles that underpin assurance engagements conducted in accordance with Accountabilitys AA1000AS (2008).
If you have work experience and know of a change that was made to effect improvement, classify what was done using the VA action hierarchy tool (chapter 9, exhibit 9.3). Analyze the change based on...
Identify the parties to whom auditors may be held to owe a duty of care as a result of the Coulthard, Siddell, BCCI, Barings and Independent Advantage cases.
In making reservations for services, a common approach for dealing with the uncertain demand is to "overbook" to avoid the costs of no-shows. How ethical is this?
You noticed recently that Lane, who works next to you at a call center, takes extended lunches and makes a lot of personal phone calls. As the result of their phone calls and breaks, you and your...
A firm offers two products for sale. The marginal cost of one product is new zero once the first unit has been produced. The marginal cost of the other product rises as output rises. What would be...
Find the current through a loop needed to create a maximum torque of 9.00 Nm. The loop has 50 square turns that are 15.0 cm on a side and is in a uniform 0.800-T magnetic field.
A conductor suspended by two flexible wires as shown in Figure P29.14 has a mass per unit length of 0.040 0 kg/m. What current must exist in the conductor in order for the tension in the supporting...
A rod of mass 0.720 kg and radius 6.00 cm rests on two parallel rails (Fig. P29.15) that are d = 12.0 cm apart and L = 45.0 cm long. The rod carries a current of I = 48.0 A (in the direction shown)...
A rod of mass m and radius R rests on two parallel rails (Fig. P29.15) that are a distance d apart and have a length L, the rod carries a current I (in the direction shown) and rolls along the rails...
A project that costs $4,450 to install will provide annual cash flows of $1,500 for each of the next 6 years. a. What is NPV if the discount rate is 11%? b. How high can the discount rate be before...
Prove MM1: Both Umbrella Inc. and Prixxa Inc. produce $300,000 of cash flow each year. Umbrella has no debt outstanding, and its cost of equity capital is 14 percent. But Prixxa has 1,000,000 depts...
How did they find the over head rate percentages for current year and last year? A job order cost sheet for Cullumber Company is shown below. Job No. 92 For 2,000 Units Date Direct Materials Direct...

At a speed of 20 km/h, a 1200-kg car accelerates at 3 m/s 2 using 20 kW

Question:

Step by Step Answer:

Power is defined in terms of force and speed an...View the full answer

Fundamentals of Ethics for Scientists and Engineers

Students also viewed these Mechanics questions