Mechanics One is one of the basic courses for Civil Engineers. This course involves a lot of Mechanical analysis of Structures, objects and Force systems. However, this course is impossible to undertake for students unless the students know how to deal with the units and other basic values are calculated in. Therefore in the first chapter of Engineering Mechanics One, the students are taught the Conversions of Units. Units are the basics calculation. A system of forces cannot be interpreted unless there is homogeneity of units. A very simple example can be used to explain this concept. Imagine a force of twenty kips and twenty Newton acting on the same direction, we know the two forces will add up however we do not know what the value will be since the two forces do not have the same base units. It cannot be said the summation of the two forces will add up to forty, even if the value was forty, the unit of this force will be unknown. Therefore, to solve this example, homogeneity of units is required and this can be either obtained by either converting the twenty kips into Newton or by changing the twenty Newton force to kip force or by converting both forces to some other form of force.
If the twenty kip force is transferred to Newton force, then the final answer will be in Newton and if the twenty Newton force is converted to kip force, then the final value of force will be in kip or both forces can be transferred into a new type of force where the final value will be in the new type of force. To transfer a force, a factor is needed to convert kip force into Newton force or vice versa which is a unit converter. The unit converter that transfers kip force into Newton force is 138. Newton per kip and the unit converter that transfers Newton force to kip force is 0. 00723 kip per Newton. Using these converters, we have the final force in the direction of the force as 20. 14 kip in terms of kip force or 2784 Newton in terms of Newton force. Therefore, it can be seen that a student needs to understand the units of forces before actually tackling the complicated problems and with this, the brief discussion on unit conversions can be concluded.
The Essay on Newtons Laws Relating to Car Safety Devices
Ever since cars were invented in the early 20th century, there have been road fatalities. Advances in car safety technology have seen a diminishing exponential curve in casualties suffered on the road. The first invention was the seatbelt, by George Cayley in the late 1900s. The next major advance was with the airbag, by John Hetrick in 1952. A patent for the design was marketed for automobiles in ...
