Question 61 – A biochemical trolley of mass 15 kg is towing a trailer of mass 5 kg along a straight horizontal pathway. The trailer and the trolley are connected by a light inextensible tow-bar. The engine of the trolley exerts a driving force of magnitude 100 N. The trailer and the trolley experience resistances of magnitude 10 N and 30 N respectively. (a) Form 2 equations with unknowns T and a, that represents the equilibrium for the 2 systems of the trolley and trailer. (b) Solve the simultaneous equations from the 2 equations that are obtained in part (a) of this question. T is the tension of the tow-bar and a is the acceleration.
Answer Posted / kang chuen tat (malaysia - pen
Answer 61 – (a) Trolley : 100 - 30 - T = 70 - T = 15a as Equation (1). Trailer : T - 10 = 5a as Equation (2). (b) Trailer : 3 times Equation (2) : 3T - 30 = 15a as Equation (3). Equation (1) - Equation (3) = 100 - 4T = 0 then T = 100 / 4 = 25 N. From Equation (2), 5a = T - 10 then a = (T - 10) / 5 = (25 - 10) / 5 = 3 N / kg. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
How are vessel lined with glass or how are they coated?
what is AZ431 & how to check it by using multimeter?
dear sir/madam, I had applied for the post of officer trainee so plz if u have any papers both technical or aptitude plz inform me on sonalichavan01@gmail.com
How can one determine if a particular solid can be fluidized as in a fluidized bed?
What is the ignititon temprecher of Diesel,Petrol&Carosion oil.
Why in a continuous plant for a Hot standby screw pump system the interlock for auto starting of the other pump ( when the running pump stopped suddenly) is given with header pressure only? why not with flow rate or current of the pump?
my qualification is b.tech- industrial biotech. i was read about many chemical engineering subject as a allied like unit operation, chemical thermodynamics, chemical reaction engineering , mass transfer and separation, downstream processing and principle of chemical engineering. and i have 2 yrs working exprience on in the field of instrumentation and control... and my query is "can i able work as process technologist" and which subject i want conc. more?........
could anyone send me model question papers or outline of graduate trainee(chemical engg) post?
Explain what types of metals are typically removed via chemical precipitation?
What is the difference between cfm (cubic feet per minute) and scfm (standard cubic feet per minute)?
What are the steps required to design a vapor-liquid separator or flash drum?
Name the some common problems associated with bellow expansion joints?
Explain what are flameless oxidizers?
What are some common precipitating agents used to remove metals from aqueous waste streams?
Explain the factors involved in considering the choice of dry screw compressor?