Newton’s Laws of Motion Understanding the core laws is the foundation for solving mechanics problems. Momentum & Impulse These concepts are highly tested in collision and impact questions. Quantity Formula NEET Explanation & Key Insights Linear Momentum (\(\displaystyle \vec{p}\)) \(\displaystyle \vec{p} = m\vec{v}\) The quantity of motion contained in a body. Conservation of Momentum If … Read more
Basic Kinematic Quantities Quantity Formula Key Point Displacement \(\displaystyle\Delta x=x_f-x_i\) Shortest directed distance Average Velocity \(\displaystyle\frac{\text{Displacement}}{\text{Time}}\) Depends on displacement Average Speed \(\displaystyle\frac{\text{Total Distance}}{\text{Total Time}}\) Depends on actual path Instantaneous Velocity \(\displaystyle v=\frac{dx}{dt}\) Velocity at an instant Acceleration \(\displaystyle a=\frac{dv}{dt}\) Rate of change of velocity Variable acceleration \(\displaystyle a=v\frac{dv}{dx}\) Useful when acceleration depends on distance 2. … Read more
1. The Core of Measurement Every physical quantity (Q) is measured as a product of its numerical value (n) and its standard unit (u). 2. Base Quantities & Their Dimensions To understand how derived quantities are built from fundamental ones, we use dimensions. Dimensional Formula & Equation Classification of Physical Quantities Based on dimensional analysis, … Read more