High School Physics

# fluid dynamics

## The effect of air resistance on projectile motion

In this post, we will find the effect of air resistance on projectile motion. We have seen that in the absence of air resistance, the trajectory or path followed by a projectile is a parabola and that the path depends only on the initial speed and angle of projection. But in the real world, all […]

## Application of Bernoulli’s principle | Bernoulli Theorem application

Application of Bernoulli’s principle | Bernoulli Theorem application

## Solution to problems – class 9 physics – Set 1 Q 60

Problem Statement 60) A metallic sphere of mass 2 kg and volume 2.5 x 10-4 m3 is completely immersed in water. Find the buoyant force exerted by water on the sphere. Density of water = 1000 kg/m3 Solution Volume of the water displaced = volume of the completely immersed sphere=2.5 x 10-4 m3 Mass of […]

## Viscosity – definition, derivation, coefficient of viscosity

Here we will define & discuss the concepts of viscosity and derive the formula of the coefficient of viscosity. When we pour a glass of water, it flows freely and quickly. But when we pour honey that flows slowly and sticks to the container. The cause behind this difference is fluid friction, both within the […]

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