Magnitude and direction of force, Mechanical Engineering

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

Posted Date: 10/16/2012 5:53:17 AM | Location : United States







Related Discussions:- Magnitude and direction of force, Assignment Help, Ask Question on Magnitude and direction of force, Get Answer, Expert's Help, Magnitude and direction of force Discussions

Write discussion on Magnitude and direction of force
Your posts are moderated
Related Questions
What is a newton ring excrement

Conve r t following reading of pressure to kPa, supposing that the barometer reads 760mm Hg. (1) 90cm Hg gauge (2) 40cm Hg vacuum (3) 1.2m H 2 O gauge Sol: Given

Two bodies of mass 1 kg and 2 kg move towards each other in mutually perpendicular direction with velocities 3m/s and 2 m/s respectively. If the bodies stick together after collisi


Dear Engineer! I have an aluminum tube(6061) fixed at one end (Cantilever Beam). The length is 180” and the load on the other end is 150 lbs. Question: What size of tubes I s

Wall-type bunds / dikes for storage compounds should be from 0.5 m to 1.5 m high (1.5 ft. - 5 ft. - check local codes and regulations), depending on the required containment capaci

A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane, then wha

Natural Air Cooling: The strips like extensions (fins) are integrated on the outside of the cylinder and cylinder block. These fins are designed in such a way that they can t

Complaints of Engine Starting: If there is a problem related to the starting of the bike, it can be due to mechanical as well as electrical reasons. The possible reasons could be

(a) What do you understand by steering gear ? Explain with a clean sketch the working of Davis steering gear process. Also show the required equation between wheel base and distanc