A car making a 100-km journey travels 40 km/h for the first 50 km. How fast must

Question:

A car making a 100-km journey travels 40 km/h for the first 50 km. How fast must it go during the second 50 km to average 50 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 01, 2011 02:50 AM

See More Questions

For the first 50 years of business the Johnson Carpet Company produced carpets for residential use. The salesforce was structured geographically. In the past 5 years a large percentage of carpet...
A motorist travels 80 km at 100 km/h, and 50 km at 75 km/h. What is the average speed for the trip?
A car rounds a curve at a steady 50 km / h. If it rounds the same curve at a steady 70 km / h, will its acceleration be any different? Explain.
1. If an industry is formed by six companies. Four companies have sales of $ 10 each, and two companies have sales of $ 5 each. a. What is the concentration ratio of four companies for this industry?...
How many individual atoms are in a water molecule?
Hillman Management Services manages apartment complexes in Tulsa, Oklahoma. They currently have 30 units available for rent. The monthly rental prices (in dollars) for this population of 30 units are...
Refer to Exercise 12. Assume you did not know that the two samples were paired, so you used the methods of Section 11.1 to perform the test. a. What is the P-value? b. Explain why the P-value is...
Refer to the bond details in Problem 10-2A, Hillside issues $4,000,000 of 6%, 15-year bonds dated January 1, 2016, that pay interest semiannually on June 30 and December 31. The bonds are issued at a...
Mr and Mrs Brady are a young couple who are starting their careers. Each weekday morning, they complete a set of activities that are necessary to get them both off to work to the office. An analysis...
Schrand Aerobics, Inc., rents studio space (including a sound system) and specializes in offering aerobics classes. On January 1, 2019, its beginning account balances are as follows: Cash,...
The nearest star, Proxima Centauri, is 4.1 1015 km away. From the vicinity of this star, Gregor places an order at Tony's Pizza in Hoboken, New Jersey, communicating via light signals. Tony's...
John can run 6.0 m/s. Marcia can run 15% faster than John. (a) By what distance does Marcia beat John in a 100-m race? (b) By what time does Marcia beat John in a 100-m race?
On Jan. 1, Year 1, Foxcroft Inc. issued 100 bonds with a face value of $1,000 for $104,000. The bonds had a stated rate of 6% and paid interest semi-annually. What is the journal entry to record the...
A particle traveling in a circular path has a velocity which is in the direction of the radius. Indicate whether the statement presented is true or false. If true, state why. If false, rewrite the...
What are the rules regarding cohabitation and termination of support?
How is the equation $\sum \mathbf{F}=\mathbf{m a}$ applied to a vibrating particle?
What are the rules regarding remarriage and the termination of support?
Particle $A$ and particle $B$ are fixed particles on a rigid body undergoing planar motion. Describe the motion of particle $B$ by an observer fixed at particle $A$.
Show that for simple harmonically heaving plunging thin airfoil the surface pressure expression is given by Eq. 6.25 as the free stream Mach number approaches 1. Eq. 6.25 Cp = (nfo2b)/ [2k(x/2b)/ +...
Answer the following two independent questions. a. MM Corporation is considering several proposed investments for the coming budget year. MM produces electrical apparatus for industrial complexes....
Calculate the molar solubility of calcium hydroxide in a solution buffered at each pH. a. pH = 4 b. pH = 7 c. pH = 9
The speed of sound in air is 331 m/s. During the next thunderstorm, try to estimate your distance from a lightning bolt by measuring the time lag between the flash and the thunderclap. You can ignore...
The average velocity of a particle moving in one dimension has a positive value. Is it possible for the instantaneous velocity to have been negative at any time in the interval? Suppose the particle...
If the average velocity of an object is zero in some time interval, what can you say about the displacement of the object for that interval
Let A = 3 Find B = sin(A) Find C = A Find D=C2 Find ECC Find F = C.*C % Your script goes here.
Determine the highest real root of f(x) = -3x - 4x + 12 2 a) by graphing it in MATLAB (sketch your plot and give an approximate value) b) using 3 iterations (by hand) of Newton-Raphson. Make a table...
1. Write the syntax definitions of the following objects: (a) Natural number (b) Unsigned integer (c) Integer (d) Odd number (e) Even number (1, 2, 3,...) (0, 1, 2, 3,...) (..., -2, -1, 0, 1, 2, ...)...

A car making a 100-km journey travels 40 km/h for the first 50 km. How fast must

Question:

Step by Step Answer:

The time for the total journey t tot ...View the full answer

Fundamentals of Ethics for Scientists and Engineers

Students also viewed these Mechanics questions