High School Physics

Frictional force

coefficient of static friction (μs) = tan θ

In this post, we will see how the coefficient of static friction (μs) = tan θ, where θ is the angle of inclination where static friction becomes the highest. In other words, θ is the angle of inclination when friction equals the value of limiting friction. (The maximum possible frictional force before the object starts […]

Three things are worth noting about frictional forces

Three things are worth noting about frictional forces: these fundamental points will help you to understand friction as a force, answer questions from the friction chapter and solve numerical problems based on friction. Here are the points: The smaller µ is, the more slippery the surface. For instance, ice will have much lower coefficients of […]

Ways to Reduce Friction & Ways to Increase Friction

We need to reduce or increase friction in different situations, depending on our requirements and benefits. Here, in this post, we will list down some efficient ways to reduce friction. Not only that, but we will also come up with some intelligent ways to increase friction as well to make our life better. Ways to […]

Measurement of coefficients of friction

This post discusses a typical experimental setup for the Measurement of coefficients of friction. As you well know, it’s easier to push an object from one point to another than to carry it from one point to another. We usually just accept this observation as obvious. But why is this so? The observation leads to […]

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 […]

Scroll to top