Screw Jack
What is a screw jack? How does it work? Which principle of physics does it use? How to calculate effort required and efficiency of a screw jack? The principle, on…
Moment of a Force
Moment is the measure of the capacity or ability of the force to produce twisting or turning effect about an axis. This axis is perpendicular to the plane containing the…
Newton’s Laws of Motion
The problems of mechanics can be solved by Newton’s laws of motion. The three laws proposed by Sir Isaac Newton, described as follows. Newton’s First Law of Motion: ‘’ Newton’s first…
Parallel Forces
What are Parallel Forces, like parallel forces and unlike parallel forces? The forces, whose lines of action are parallel to each other, are said to be parallel forces. if the parallel forces…
Moment of Inertia
Moment of Inertia - It may be defined as the moment of the moment i.e. second moment of mass or area of a body. It is usually denoted by I. Consider…
Resultant Force
Resultant Force - It is a single force which produces the same effect as produced by all the given forces acting on a body. The resultant force may be determined…
Projectile Motion
What is a Projectile? What is Projectile Motion and what are different equations used in projectile motion? A particle moving under the combined effect of vertical and horizontal forces, is…
Mass, Weight, Momentum and Inertia
Define Mass, Weight, Momentum and Inertia Force in Engineering Mechanics. The mass is a matter contained in a body. It is expressed in kilogram (kg). The weight of a body is a…
Mechanical Energy | Definition | Types
What is Mechanical Energy? How do we define it and what are different types of it? It is the capacity of doing work. The mechanical energy is equal to the workdone on…
Friction and Its types
Friction and Its types. Static vs. Dynamic friction. Sliding vs. Rolling friction. Limiting friction. Coefficient of Friction. A force acting in the opposite direction to the motion of the body is called force…
