Question: A ball is hanging from a long string that is tied to the ceiling of a train car traveling eastward on horizontal tracks. An observer

A ball is hanging from a long string that is tied to the ceiling of a train car traveling eastward on horizontal tracks. An observer inside the train car sees the ball hang motionless. Draw a clearly labeled free-body diagram for the ball if
(a) The train has a uniform velocity, and
(b) The train is speeding up uniformly. Is the net force on the ball zero in either case? Explain.

Step by Step Solution

★★★★★

3.52 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

IDENTIFY Since the observer in the train sees the ball hang motionless the ball must have the same a... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-M-L-M (102).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

A pulley fixed to the ceiling of an elevator car carries a thread whose ends are attached to the loads of masses m1 and m2. The car starts going up with an acceleration Wo. Assuming the masses of the...

Draw a proper free body diagram for the curved bar shown below. Cle

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in Figure P6.10. The length of the arc ABC is 235 m, and the car completes the turn in 36.0 s. (a)...

Please show you work so that I could understand it better and then preform everything on my own. c) What IS the force exerted by the block on the inclined plane Ht that scenario? 301 A curve has a...

Please read the question Question: On pages 5 and 6 the authors write, "Narrative provides not only meaning but also a mental framework for imbuing future experiences and information with meaning, in...

47. A space probe may be carried by a rocket into outer space. What keeps the probe moving after the rocket no longer pushes it? 53. Consider a pair of forces, one having a magnitude of 20 N and the...

Note: To simplify calculations, you may use g = 10 m/s in all problems.V =7.5 m/s Questions 2-4 refer to the following figure: B C - NWAVAN D velocity (m/s) 1. An object is thrown horizontally to the...

13. By noticing that Uranus's strange orbit, two astronomers independently discovered Neptune by using the law of gravitation and A. knowing that Uranus has several moons. B. using exceptions to the...

18. What do you call that graph of a mechanical system's potential energy which is easily accomplished in a one-dimensional system? A. Energy diagram B. Potential energy diagram C. Gravitational...

Hey tutors, kindly help me with this exam prep exercise . Explanation need not be too detailed 26. [-/2 Points] DETAILS SERCP11 3.2.OP.009. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A mountain lion...

Robin Student calculated the mass of CaCl26H2O to be used in the synthesis of K2NiCa(NO2)6 and subsequently weighed out that mass of CaCl22H2O. Did Robin use too little or too much of the calcium...

A summarised comparative statement of financial position of Waikato Ltd is presented below, together with the statement of profit or loss and other comprehensive income for the year ended 30 June...

1 0 . The risk free rate is 4 % , and the market risk premium is 8 % . If the stock has a beta of 1 . 5 , the required rate of return on the stock is: Question 1 0 options: 1 0 . 0 0 % 1 2 . 5 0 % 1...

Q.2 You are the current investor the government of Zambia has sold to you Konkola Copper Mine . The mines need serious revamping with the following equipments and their cost as follows: (ri) Leaching...

QI How is the dilution rate related to substrate in the first tank and biomass in the second tank for the system? (a) What is the material balance of two biochemical reactors connected in series? (10...

QB6 (a) Discuss the single and double displacement reactions involving enzymes showing the reaction mechanisms. 8 marks) (b) The effect of temperature on the biochemical reactions shows the...

A continuous biochemical reactor, fermenter, with an operating volume of 100 (b) litres is fed with sterile feed containing limiting sub:trate of 3500 mg/L at a rate of 20 litres per hour. Calculate...

When the Ti3t ion is complexed by ligands X (a neutral molecule) and Y (an anion) it gives octahedral species of the type [TI(X)6]3* and [Ti(Y)6], respectively, which have two different colours. The...

Differentiate the function. f(x) = 5 In x

Kathy is 60 years of age and self-employed. During the year (2015) she reported $100,000 of revenues and $40,000 of expenses relating to her self-employment activities. If Kathy has no other...

You are an equity analyst newly examining the financials of Titan Carpet Cleaners, and are examining measures of cash flow. The tax rate for the firm is 3 5 % , and the Payout Ratio is 1 5 % . You...

Flexibility options Gadget Twin Inc. is looking at investing in a production facility that will require an initial investment of $500,000. The facility will have a three-year useful life, and it will...