High School Physics


Impulse – definition, formula, unit

Impulse Definition If a force acts on a body for a very brief time then we say that an impulse is generated. As example, when we hit a ball with a bat for a brief period of time then an impulse is generated. Here a considerable amount of force acts on a body for a […]

Newton’s Second Law and equation of Force

Newton’s Second Law states that the rate of change of momentum of a body is directly proportional to the net force applied on it, and this change in momentum takes place in the direction of the applied force. Mathematically it can be stated this way: F∝ (mV-mU)/t. Here, F is the net force acting on the […]

Physics problems with pseudo force and solutions

Physics problems with pseudo force with solutions- these problems are going to be related to the noninertial frame of reference. Let’s solve an interesting numerical. A smooth inclined plane with an angle of inclination 30 o is moving with a constant acceleration a (as shown in the figure). When a block is placed on the […]

Contact Forces between blocks – Application of Newton’s laws

Application of newton’s laws: Newton’s laws of motion give us concepts of force (first law), measurement of force with its equation (second law), and the reaction of force (3rd law). Today we will discuss an interesting topic of mechanics – the application of Newton’s laws. It will cover a few interesting applications of Newton’s Laws […]

Pushing a car, Newton’s 3rd Law and Friction

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 […]

Freefall in physics

In this post, we will find out (a) how to find the weight of a freely falling body (b) How the velocity of a freely falling body changes every second if we ignore air drag force (air resistance)? (c) Why do we feel weightless during freefall (d) Kinetic energy of a body under free fall (e) Applicability of Law of conservation of energy for free fall (e) how distance traveled per second varies

Force in Physics

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 […]

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