The 80lb plank shown in figure, rests on two cylindrical rollers with radius r each weighing 30lbs. Calculate the force P that will accelerate the plank up the incline at 6ft/s². Assume no slipping occurs either at the plank or at the incline.

Q: In the illustration of direct extrusion below, the extrusion force changes as the ram advances in…

A: Extrusion is the process used for creating objects with a fixed cross-sectional profile. The…

Q: What are the Coplanar Loadings?

A: Loadings are said to be coplanar when they all are lying in a plane example :  Plane trusses

Q: How does the adoption of Industry 4.0 technologies, such as IoT sensors and machine learning…

A: Industry 4.0 is often regarded as the fourth industrial revolution, characterized by the integration…

Q: QI. How "composite material - aerofoil blade" delivers more efficiency than other shape & materials…

A: In simpler words, composite materials are the ones that on the macroscopic level are composed or…

Q: Are car body styles exactly identical between years? Like does a 2009 Dodge Charger look identical…

A: The question is asking whether the body styles of cars remain exactly the same between different…

Q: What is true stress and true strain?

A: To define: True stress True strain Stress: It is defined as the internal resistance developed at a…

Q: Can the External forces be applied to a body as distributed or concentrated loadings?

A: Yes, external forces can be distributed or concentrated.

Q: Metal work: What are possible sources of error in trying to obtain a specific hardness or strength?

A:

Q: Each cylinder in a four-cylinder car engine has a bore diameter of 63.53 mm and the stroke for each…

A:

Q: - In a rolling process, the state of stress of the material undergoing deformation is (a) pure…

A: In a rolling process, the state of stress of the material undergoing deformation is Answer: (c)…

Q: How can we find the value of shear flow?

A: Shear flow: In the built-up beams, the phenomena of shear flow appear frequently. These beams are…

Q: What are some of the important principles of statics and show how they are used to determine the…

A: Statics: It is the branch of Mechanics which deals with the loads or forces acting on the body that…

Q: How does the Deformation of a body occur?

A: Deformation: Whenever a body is subjected to a change in its shape size from its original shape and…

Q: Write the nature of work done by an elongated spring?

A: The elongation produced in an ideal spring is directly proportional to the spring force F=−kx.

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.