A 1500 kg car starts from rest on a horizontal road and gains a speed of 72
Question:
(a) What is its kinetic energy at the end of the 30 s?
(b) What is the average power required of the car during the 30 s interval?
(c) What is the instantaneous power at the end of the 30 s interval, assuming that the acceleration is const ant?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 90% (11 reviews)
a The kinetic energy K of the automobile of mass m at t 30 s is 1000 mkm 3600 sh 1 1 Kmv 1 2 2 b ...View the full answer
Answered By
Poonam Chaudhary
I have 15 month+ Teaching Experience
5.00+
2+ Reviews
10+ Question Solved
Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Question Posted:
Students also viewed these Mechanics questions
-
A 1500 kg car starts from rest and drives around a flat 50-m-diameter circular track. The forward force provided by the cars drive wheels is a constant 1000 N. a. What are the magnitude and direction...
-
A race car starts from rest on a circular track with radius 100m and begins to increase its speed by 5 m/s each second. At what point in time is the cars vector acceleration directed 45 away from...
-
A race car starts from rest on a circular track. The car increases its speed at a constant ate at as it goes once around the track. Find the angle that the total acceleration of the car makeswith the...
-
For the following exercises, find the inverse of the functions. f(x): || 3 x-4
-
a. "Our use of currency futures has completely changed our risk-return profile." b. "Our use of currency options resulted in an upgrade in our credit rating." c. "Our strategy to use forward...
-
Identify some of the key cash inflows and cash outflows.
-
Allocate costs to products or services and use the physical units, relative sales value, and net realizable value methods to allocate joint costs.
-
Which of the following estate planning documentswill, codicil, letter of last instructions, living willdo the following individuals/families need? Explain your rationale. a. Kayla, a recent college...
-
Question 5 of 5 (1 point) | Attempt 3 of Unlimited | View question in a popup 11.3 Section Exercise 21 Find the mean, median, midrange, and mode. Round to four decimal places, if necessary. Then...
-
Give the formal description of the machines M 1 and M 2 pictured in Exercise 1.1. Exercise 1.1 The following are the state diagrams of two DFAs,M 1 andM 2 . Answer the following questions about each...
-
A river descends 15 m through rapids. The speed of the water is 3.2 m/s upon entering the rapids and 13 m/s upon leaving. What percentage of the gravitational potential energy of the water-Earth...
-
A particle can move along only an x axis, where conservative forces act on it (Figure and the following table). The particle is released at x = 5.00 m with a kinetic energy of K = 14.0 J and a...
-
What impact did the September 11 terrorist attack have on U.S. airline demand? An analysis was conducted by I to and Lee1 "Assessing the impact of the September 11 terrorist attacks on U.S. airline...
-
Stephanie has purchased a decent apartment in the suburb of Nilai, Selangor, 8 years ago at an undisclosed price. She took a home loan with a 30-years repayment term at 5% interest per annum, which...
-
Q1: What drives the success of local small businesses? What could cause them to fail? Q2: What are the key characteristics/differences between sole proprietor, LLC, and Corporation? Q3: A group of...
-
Develop a static and flexible budget for the year using the quarterly budget information provided in Exhibit 1. For the static budget, determine the total number of units budgeted for the year and...
-
Crazy Cliff's Car Coral crushes competition causing college customers considerable consternation. Crazy Cliff's has no debt and considering opening a new dealership - Crazier Cliff's. Crazy Cliff...
-
1.It is January 1 st , 2014 and Oscar D'Souza has decided to start a new business.He wants to forecast the first year's Income Statement and Balance sheet.He believes the assumptions below are...
-
Rally Corps Eastern Division has sales of \($190,000\), cost of goods sold of \($110,000\), operating expenses of \($35,000\), average invested assets of \($900,000\), and a hurdle rate of 12...
-
Illini Company, Inc. Balance Sheet as of 12/31/20X0 Assets Current Assets: Cash $1,500,000 Accounts receivable, net 18,000 Inventory 50,000 Total current assets 1,568,000 Equipment 90,000 Goodwill...
-
Derive for the range of a projectile on level ground by finding the time at which becomes zero and substituting this value of into the expression for noting that R = la 2 sin 200 8
-
Assume that the Earths atmosphere has a uniform temperature of 20C and uniform composition, with an effective molar mass of 28.9 g/mol. (a) Show that the number density of molecules depends on height...
-
If you cant walk to outer space, can you at least walk halfway? Using the law of atmospheres from Problem 43, we find that the average height of a molecule in the Earths atmosphere is given by
-
In an ultra-high-vacuum system, the pressure is measured to be 1.00 X 10-10 torr (where 1 torr = 133 Pa). Assuming the molecular diameter is 3.00 % 10-10 m, the average molecular speed is 500 m/s,...
-
The following financial statements were prepared at the end of the month of May:TOPS IN TOPIARY - INCOME STATEMENT FOR the month of MayRevenue$2, 540Expenses :Rent Expense$ 500Advertising Expense$...
-
Question content area top Part 1 ?________ consider proposed fixedminusasset ?outlays, research and development? activities, marketing and product development? actions, capital? structure, and major...
-
Samsung Inc. Stockholder's Equity Common Stock, $10 Par (Stated Value) $800,000Paid in Capital in Excess of Par (Stated Value) $125,000Retained Earnings XTreasury Stock, 20,000 shares $150,000Total...
Study smarter with the SolutionInn App