Evaluate the angle - block impends down the plane, Mechanical Engineering

Evaluate the angle - block impends down the plane:

What should be value of the angle shown in the figure so that the motion of the 90N block impends down the plane? The coefficient of friction for entire surface = 1/3.

1329_Evaluate the angle - block impends down the plane.png

Sol.: Consider equilibrium of block 30N             

∑V = 0;                                                                      1403_Evaluate the angle - block impends down the plane1.png

R1  - 30cos θ  = 0,

R1 = 30cos                                 ...(i)

∑H = 0;

T - µR1 - 30sinθ   = 0,

T = 10cos θ  + 30sinθ           ...(ii)

Consider the equilibrium of block 90N

∑V = 0;

R2  - R1  - 90cos θ  = 0

R2 = 120cos                             ...(iii)

∑H = 0;

90sin θ  - µR1 - µR2 = 0,

90sin θ  = 10cos θ  + 40sinθ         ...(vi)

tanθ = 5/9 that is  θ = 29.050


Posted Date: 10/18/2012 2:24:50 AM | Location : United States

Related Discussions:- Evaluate the angle - block impends down the plane, Assignment Help, Ask Question on Evaluate the angle - block impends down the plane, Get Answer, Expert's Help, Evaluate the angle - block impends down the plane Discussions

Write discussion on Evaluate the angle - block impends down the plane
Your posts are moderated
Related Questions
Torque Transmission : The clutch should be able to transmit the maximum torque of the engine under all conditions. It is usually designed to transmit 125 to 150 percent of the max

CO 2 Gas Supply The CO 2 shielding gas is supplied cylinders at high pressure (140 kg / cm 2 ). Therefore pressure regulator and flow meter are connected to reduce the pressu

In designing rotating space stations to give for artificial-gravity environments, one of the constraints that must be considered is motion sickness. Studies have shown that the neg

Q. What do you mean by Line Designation Tables? Development of the Line Designation Tables (LDT's) is carried out in conjunction with the evolution of the P&ID's. Engineering

What is strap footing? Strap Footing You have to use cantilever or strap footings when the proximity of a property line precludes the use of other types for example an isola

Wave motion takes place all throughout nature, from the waves of the ocean to the electromagnetic waves that comprise visible light. Though different types of waves involve differe

Find the tangential and normal components of acceleration: A fly wheel along diameter 400 mm begins from rest with constant angular acceleration 2 rad/sec 2 . Find out the tan

Clutch: Clutch is a part which is used to transmit the rotary motion of one shaft to another shaft, when desired; the axis of second shaft must be in line with the axis of the fir

steel ball v/s cotton ball of same weigt which is easy to lift