Force required to start the roller, Mechanical Engineering

Force required to start the roller:

A roller shown in the figure given below is of mass 150Kg. What force T is required to start the roller over block A?

Sol.: Let R be reaction given by block to the roller, and is to act at point A subtends an angle of ? as shown in the figure given below,

For finding angle θ  ,

Sin θ  = 75/175 = 0.428

= 25.37°

Apply lami's theorem at 'A', as the body is in equilibrium

T/sin(90° + 25.37°) = 150 × g/ sin(64.63° + 65°)

T = [150 × g × sin(90° + 25.37°)]/ sin(64.63° + 65°)

T = 1726.33N

 

854_Force required to start the roller.png

 

Posted Date: 10/16/2012 5:49:53 AM | Location : United States







Related Discussions:- Force required to start the roller, Assignment Help, Ask Question on Force required to start the roller, Get Answer, Expert's Help, Force required to start the roller Discussions

Write discussion on Force required to start the roller
Your posts are moderated
Related Questions
Need and Function of Foundation A foundation can be defined as that part of a structure which serves to transmit the forces and moments coming from the structure above the gro

(a) What are the functions of brake? What are the types of brakes? (b) How do brakes stop a moving vehicle? (c) What is the difference between brake and clutch? (d) Descri

Alumina-Silica Composite  This composite is an especially usual refractory material. Due to easy availability and low cost aluminia-silica composite is extensively utilized in

WHY SHEAR STRESS IS NOT MAXIMUM AT THE NEUTRAL AXIS IN TRIANGLE...ITS MAX IN ALL OTHER CASES BUT Y NOT IN TRIANGLE?#

Pumps should be grouped together with good maintenance access to the motor, and good personnel access to seals and suction / discharge valves. Maintenance access should allow for r


Calculate the amount of cement, sand, aggregate, and water needed to create a concrete mix with a 28-day compressive strength of 34 MPa for a 10 m x 10 m x 0.25 m structure given t

Takt Time for sand blasting:             Tatk time is crucial in manufacturing process. It determines the speed of production to produce a product. Time is money toward prod

Distinguish between microscopic and macroscopic approaches. Describe thermodynamic system. Differentiate between closed system, open system and an isolated system.

Calculate Additional force required to maintain equilibrium: Fo r the system shown in figure find the additional single force required to maintain equilibrium. Sol.: L