Determine the reaction at specific points, Mechanical Engineering

Assignment Help:

Determine the reaction at specific points:

A light rod AD can be supported by frictionless pegs at B and C and rests against frictionless wall at A as shown in the given figure . A force of 100N is applied at end D. Determine the reaction at points A, B and C.

Sol.: As roller supports at point B, C, so that the vertical reactions are there RB, RC. At point A rod is in the contact with wall that is wall give contact reaction to the rod say RA.

 

1449_Determine the reaction at specific points.png

Let rod is inclined at an angle of θ . The rod is in position of equilibrium.

ΣV = 0

RBcosθ   - RCcosθ   + 100cosθ = 0

RC  - RB = 100                                                                                                                                 ...(i)

Taking moment about A:

ΣMA = 100 × 0.6 - RC × 0.4 + RB × 0.2 = 0

2RC  - RB = 300                                                                                                                                ...(ii)

Solving the equation (i) and (ii)

RC = 200                                                                                         .......ANS

RB = 100            .......ANS

ΣH = 0

RA  + RBsinθ   - RCsinθ   + 100sinθ   = 0

RA  + 100sinθ   - 200sinθ   +100sinθ   = 0

RA = 0                                        .......ANS


Related Discussions:- Determine the reaction at specific points

What is the brick inner surface temperature, Derive 3-D non-steady state co...

Derive 3-D non-steady state conduction equation in spherical co-ordinates. Explain the assumption involved. The hot combustion gases of a furnance are divided from the ambient a

Determine the damping ratio and undamped natural frequency, With the assist...

With the assistance of the airplane information and the Dutch roll approximation values shown in Table Q3: Table Q3 (a)  Determine the Dutch roll eigenvalues. (b)  Dete

Plate oil separator, Plate oil Separator: Check for plate oil separator fi...

Plate oil Separator: Check for plate oil separator fitment.

Determine strain energy stored in coiled helical spring, Determine Strain e...

Determine Strain energy stored in coiled helical spring: For a close coiled helical spring subjected to an axial load of 200 N with 10 coils of wire of diameter 18 mm and buil

MOS, limitations of euler''s theory

limitations of euler''s theory

Diesel cycle, The pressure and temperature of a diesel cycle at the start a...

The pressure and temperature of a diesel cycle at the start are 1 bar and 20C respectively and the compression ratio is 14. The pressure at the end of expansions 2.5 bar. Find perc

Evaluate the motion of system, Evaluate the motion of system: Q : Blo...

Evaluate the motion of system: Q : Block A and B are connected by a rigid horizontally bar planed at each end are placed on the inclined planes as shown in the figure giv

Velocity ratio for open belt drive, V elocit y Ratio for Open Belt Drive:...

V elocit y Ratio for Open Belt Drive: Figure Consider a simple belt drive (that is one driver and one follower) as shown in the figure given below Let D 1

Find out the common velocity, Find out their common velocity: An aerop...

Find out their common velocity: An aeroplane weighing 40 kN horizontally moves with a velocity of 20 m/sec (72 kmph, that means 72 km per hour). A helicopter of weight 20 kN i

Ballast - permanent way, Ballast: Ballast is the layer of broken ston...

Ballast: Ballast is the layer of broken stone provided on the formation on which the sleepers rest. The stones are cubical in shape and pass through 50 mm square mesh. The fu

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd