Mass Vs. Weight Comparing and Understanding differences Mass and weight, most of the time both physical quantities are used interchangeably in our day to day life. People mix them up most of the time, but both these quantities are not the same. The basic difference between weight and mass is that mass is the amount […]
On this page we are providing some frequently asked questions on the concept of force along with their answers. Please note that these questions on the concept of force are not numerical questions. These are some basic conceptual questions and students must be familiar with these concepts to solve numerical problems in this topic. Notes […]
This tour is given to give the feel of the whole chapters plus the type of questions and ways to tackle them.This is quite beneficial for anybody studying One dimensional Motion.
One dimensional Motion is the study of the motion along an straight line.Complete Study material has been provided at the below link
Motion in a Two dimensional Plane
Select a coordinate system and resolve the initial velocity vector into x and y
Find out acceleration in each direction and solve in each direction according to one rectilinear motion equation.
if the acceleration is in vertical direction only.Follow the techniques for solving constant-velocity problems to analyze the horizontal motion. Follow the techniques for solving constant-acceleration problems to analyze the vertical motion. The x and y motions share the same time of flight t.
Question 1A ball of mass 100 g is projected vertically upwards from the ground with velocity 49 m/s. At the same time other identical ball is dropped from a height of 98 m to fall freely along the same path as followed by the first ball. After some time two balls collide and stick together […]
What is Equilibrium
A rigid body is supposed to be in equilibrium if there is no change in translational motion and no change in rotational motion
The general conditions for equilibrium are as follows
(i) The total force must be zero
(ii) The total torque about any axis must be zero.
In many cases it is convenient to consider torques about axes through the centre of gravity.
Types of equilibrium
We can divide the equilibrium into two categories With respect to the state of a body
1. Static equilibrium.
2. Dynamic equilibrium.
The flow of charge in an electric circuit signifies the existence of electric current in that circuit. We can define electric current as the rate of flow of electric charges (electrons) in a conductor (for example copper or metallic wire). Flow of charge definition The flow of charge is the process of supplying or adding […]
In this article, we will learn about the difference between resistance and resistivity. Students first come across these terms while studying Electricity where the concept of electric current, resistance and resistivity are introduced. For the basic introduction visit our notes on electricity. TLDR – Too Long Don’t ReadBoth resistance and resistivity describe how difficult it […]