Magnitude and direction of force, Mechanical Engineering

Assignment Help:

Magnitude and direction of force:

Determine magnitude and direction of smallest force P which is required to start the wheel over the block. As shown in the figure.

Sol.: Let the reaction of block be R. The least force P is always perpendicular in reaction R. When the wheel is just on point of movement up, then it loose contact with the inclined plane and reaction at this point becomes zero.

 

1193_magnitude and direction of smallest force.png

Consider ?OMP

OM = 60cm

OP = 60-15 = 45cm

MP = {(OM)2 - (OP)2}1/2

544_magnitude and direction of smallest force1.png

= {3600 - 2025}1/2

= 39.68cm

tan     = MP/OP = 39.68/45,           = 41.400

Using lamis theorem at O

P/sin108.6° = 10/sin90° = R/sin161.4°

P = (10 × sin108.6°)/sin90° =9.4KN Thus smallest force P = 9.4KN


Related Discussions:- Magnitude and direction of force

Determine net force acting on the piston, A Single Cylinder Vertical Engine...

A Single Cylinder Vertical Engine has a stroke of 40cm and a bore of 30cm. The connecting rod is 100cm long. The mass of the reciprocating parts is 140Kg on the expansion stroke wi

Basic s.i. units and its derived unit - mechanics, Basic S.I. Units and its...

Basic S.I. Units and its derived unit: S.I. stands for "System International Units". There are three quantities in the Standard International Systems as concerned to Mechanics

Helix angle, what is helix angle and how to determine it?

what is helix angle and how to determine it?

Oil gun-tool and equipment , Oil Gun: This is used to supply fluid oil to ...

Oil Gun: This is used to supply fluid oil to chassis lubrication (Figure). Figure : Oil Gun

Determine the shear stresses, A composite shaft consists of copper rod of 3...

A composite shaft consists of copper rod of 30mm diameter enclosed in a steel tube of external diameter 50mm and 10 mm thick. The shaft is needed to transmit a shaft is required to

Corrosion resistance of the austenitic stainless steels, The corrosion resi...

The corrosion resistance of the austenitic stainless steels (within the concentration and temperature conditions described above) relies on the formation and stability of a passive

Determine shear plane angle, The following data was obtained from an orthog...

The following data was obtained from an orthogonal cutting test : Rake angle = 20o, Depth of cut = 6 mm Feed rate = 025 mm/rev Chip length before cutting = 29.4 mm Chip

Gyroscope, what is principle of gyroscope

what is principle of gyroscope

Determine the springs needed to absorb the energy, Determine the springs ne...

Determine the springs needed to absorb the energy: A vehicle weighing 28 kN and running at 2.5 m/sec is to be brought to rest by a buffer springs. Determine the number of spri

Entropy, Defrance between entrpy and enthalpy

Defrance between entrpy and enthalpy

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