High School Physics + more
Newton’s third law of motion states that to every action there is an equal and opposite reaction. This means for every action or force exerted by the first object on the second object, there will be a reaction force that is equal in magnitude and opposite in direction to the action force. And this reaction force […]
In this post we will discuss how does an astronaut feel weightless in a nearby orbit and what is the secret behind this weightlessness in a satellite? To start with lets see how we feel this weight. If an object rests on a surface, its weight acts downwards on the surface. According to Newton’s third […]
Today’s topic is Critical velocity in a vertical circular motion. Once we are done with its definition we will derive the Critical Velocity formula. Definition: The minimum velocity of an object at the highest point of the rotation while having a vertical circular motion, is called Critical Velocity. If the velocity of the object falls […]
Here we will discuss in detail the terminal velocity and Terminal Velocity Equation. Before that, we will also cover a few important pointers on free fall and then discuss Air Drag or Air resistance, Drag force, and Drag Force Equation. In one of the earlier posts, we have discussed the free-fall equations. You can check that if […]
Centripetal Force concepts & facts with examples and Washing machine: In this post, we will discuss the fundamental concepts of centripetal force & its real-life examples like how the centripetal force helps the Washing machine operation, etc. We’ll find out how concepts of centripetal force have been intelligently implemented in Washing machines to wash clothes. […]
In this topic, we will see an application of Newton’s Second Law in 5 selected cases of Elevator movement, which will help us to solve elevator problems in Physics with ease. From Newton’s Second Law, we can derive the equation of Force. If F is the net force applied on an object of mass m […]
How Friction helps in walking?-explanation with a free body diagram
Mass and Weight – are they the same or different? Mass and weight are different. Mass is the quantity of matter; it is an absolute measurement of how much matter is in a body or an object. The SI unit of mass is the kilogram (kg). Weight is the force that acts on a mass […]
The frame of reference and Newton’s first law of motion – This law says that if the sum of all the forces acting on a particle is zero then a static particle continues to remain at rest and a moving one continues moving with a constant velocity along a straight line. That means if no […]
Hope you have seen people pushing their car when it’s not starting due to some issue. When someone is pushing a car or something like that, he first pushes the ground or floor obliquely backwards with his feet. Following the ‘3rd law of Newton‘ the ground also exerts an equal and opposite force obliquely on […]
In this post, we will discuss the fundamentals of Force in physics which will include the definition of force and force formula, types and examples of force, reference to Newton’s laws of motion, and units of force. What is a force? Force is a push or a pull that causes a change of velocity of […]
