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kingsley onahRelative velocity Two ships leave at the same time from one port bound to another port 180m away and one arrived two hours before the other. If the different in the speed of the ships is 3m/s, find their speeds.31 AugustComment
andy chuks It is major engine work that usually requires removing the engine from the vehicle, and rebuilding or replacing internal components (e.g. pistons, connecting rods, valves).
A complete engine overhaul involves replacing piston rings, reboring or honning cylinder walls, replacing pistons (if the cylinders are rebored), replacing main and connecting... Read All 0014 May 2012
JP Williams Work done is force applied to move a body over a distance. Therefore work done is force x distance = F x d.
Note workdone can be in various forms it can be f x coso x d where the force is applied at an angle along a plne.
Workdone can also be 1/2MV^2 etc 0014 October 2010
andy chuks In thermodynamics, work done on a system is
dW = -pdV
where W= work done, p=pressure, V=volume
W = - S pdV (where S is integral sign)
For a closed system 0014 October 2010
andy chuks Strain is a measure of distortion or deformation of a body relative to the original state of the body. It can be
- Linear Strain: We define it as change in length of the body over the original length.
Strain = (L2 - L1)/L
- Volumetric Strain: Here we define it as change in volume over the original volume.
Strain = (V2 - V1)/V
- Shear Strain:... Read All 0012 October 2010
andy chuks Stress is defined as Force per unit area. Stress can be Linear (Tensile or Compressive), Shear, Bulk/Volumetric.
Stress = Force/Area = F/A 0011 October 2010
andy chuksDefinition and Introduction to Mechanics Mechanics the branch of physics concerned with the behavior of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. It is the study of the way matter and forces interact with each other. Here we are concerned with rigid macroscopic bodies, i.e., bodies that you can easily see, do not... Read All24 July 2010Comment
alhassan issah can i know more about that? 0013 May 2012