A light cargo train of mass 3000kg accelerates from rest at station A and reaches a...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A light cargo train of mass 3000kg accelerates from rest at station A and reaches a velocity of 113km/h in 25 seconds. It then travels at constant velocity for 30seconds before the driver applies the brakes and brings the vehicle to rest over a distance of 650m. a) Draw the 'velocity-time' graph of the motion of the indicating salient points and values. b) Calculate the force required to: (i) accelerate the vehicle (Ans: E- 3.8 kN) (ii) bring (decelerate) the vehicle to rest. (Ans: E - 2.3 kN) c) Determine the total time and the total distance travelled during this period. (Ans: t-96.3s and S- 1984.5 m) Further into the trains journey, and after the train has loaded an additional 1000 kg, the train attains a constant velocity of 65km h. Calculate the difference in the momentum of the train from unloaded to loaded whilst travelling at the specified constant velocities (Aus: Difference 21.978 kgm's) d) A light cargo train of mass 3000kg accelerates from rest at station A and reaches a velocity of 113km/h in 25 seconds. It then travels at constant velocity for 30seconds before the driver applies the brakes and brings the vehicle to rest over a distance of 650m. a) Draw the 'velocity-time' graph of the motion of the indicating salient points and values. b) Calculate the force required to: (i) accelerate the vehicle (Ans: E- 3.8 kN) (ii) bring (decelerate) the vehicle to rest. (Ans: E - 2.3 kN) c) Determine the total time and the total distance travelled during this period. (Ans: t-96.3s and S- 1984.5 m) Further into the trains journey, and after the train has loaded an additional 1000 kg, the train attains a constant velocity of 65km h. Calculate the difference in the momentum of the train from unloaded to loaded whilst travelling at the specified constant velocities (Aus: Difference 21.978 kgm's) d)
Expert Answer:
Answer rating: 100% (QA)
Answer Solution Linear Motion b V As F m absa V a s kmh ms kmh ms ms m m kg N ... View the full answer
Related Book For
Posted Date:
Students also viewed these accounting questions
-
A cyclist accelerates from rest at a rate of 1.00m/s2. How fast will a point on the rim of the tire (diameter = 68cm) at the top be moving after 3.0s? v = ? a = 1.00 m/s? This point on tire at rest...
-
A car accelerates from rest at a constant rate of 2.0 m/s2 for 5.0 s. (a) What is the speed of the car at the end of that time? (b) How far does the car travel in this time?
-
An automobile accelerates from rest at 2 m/s 2 for 20 s. The speed is then held constant for 20 s, after which there is an acceleration of -3 m/s 2 until the automobile stops. What is the total...
-
On April 1, 2014, Briggs Corp. purchases a 24-month property insurance policy for $72,000. The policy is effective immediately. Assume that Briggs prepares adjusting entries only once a year, on...
-
Ticos Restaurants acquired Tin Bus Diners. The financial records of Tin Bus Diners included the following: Book Value of Assets...........................................................................
-
What are the four possible requirements for inelastic traffic?
-
Provide an example for actor generalization. What is the significance of generalizing or specializing actors?
-
At the end of June, Morton Company had a balance of $49,900 in the vacation benefits payable account. During July, employees earned an additional $3,110 in vacation benefits, but some employees used...
-
You intend to purchase Dorchester common stock at $52.00 per share, hold it for 1 year, and then sell it after a dividend of $6.25 is paid. How much will the stock price have to appreciate for you to...
-
You are a financial analyst at a firm that has been returning cash to shareholders through stock repurchases. You want to determine how the level of repurchases will vary as a function of the sales...
-
A series RLC circuit has a resistance of 20 ohms, a capacitance of 10-2 Farads, an inductance of 10 Henrys, and an applied voltage of 100sin(10t) volts where t is time in seconds. Assuming no initial...
-
10. A particle of mass m starts from rest at position x = 0 and time t= 0. It moves along the positive x-axis under the influence of a single force F = bt, where b is a constant. The velocity v of...
-
Risk averse investor is the one who requires a ( n ) A ) increase in return, for a given decrease in risk B ) increase in return, for a given increase in risk C ) decrease in return, for a given...
-
A student drove to the university from her home and noted that the odometer reading of her car increased by 15.0 km. The trip took 17.0 min. (For each answer, enter a number.) (a) What was her...
-
The following costs were incurred in August by the Bugs Moran Company: direct materials....................................$33,000 depreciation on factory equipment.....$12,000 factory janitor's...
-
QUESTION 4(a) Determine the coordinate for centroid of the homogeneous sheet metal component shown in Figure Q4(a). Tentukan koordinat titik tengah bagi komponen kepingan logam seragam ini dalam...
-
A W21 x 57 of A992Gr50 steel column having length of 6 m and is fixed at both ends. (Gr50 steel = 50 ksi = 345 MPa = Fy) is used to carry a load of 900 kN dead load and 400 kN live load. Note: Use...
-
Chris Zulliger was a chef at the Plaza Restaurant in the Snowbird Ski Resort in Utah. The restaurant is located at the base of a mountain. As a chef for the Plaza, Zulliger was instructed by his...
-
A proton enters a uniform magnetic field that is at a right angle to its velocity. The field strength is 0.80 T and the proton follows a circular path with a radius of 4.6 cm. What are (a) The...
-
If an electron has a kinetic energy of 2 keV, could the classical expression for kinetic energy be used to compute its speed accurately? What if its kinetic energy is 2 MeV? Explain.
-
Weighing yourself at a park in Ecuador through which the equator runs, you would find that you weigh slightly less than normal. Why is this?
-
Kaplan gives several examples of the need to clearly explain the cafs purpose and goals. Identify specific assumptions or misconceptions that their audience may have. Why is managing or countering...
-
What organizations are you personally in contact with that rely on grants for all or part of their budget? Are you ever the in a position to make requests for funding? Do you ever receive those...
-
What incentives do digital tools provide to circulate more rather than fewer paper documents? What incentives do companies have to reduce their use of paper? What tradeoffs or conflicts between these...
Study smarter with the SolutionInn App