Physics 11 class

Complete handwritten solved numericals of *1st Year Physics Chapter 2**" * *Note:** This document contains only the solutions / answers to the numerical problems. The questions are not included in this PDF."* questions nahi likhe hue. Numerical (3):* If |A+B| = |A-B| proves that A is perpendicular to B. Proof: √(A²+B²+2A·B) = √(A²+B²-2A·B) => 4A·B=0 => AB cosθ=0 => θ=90°. *Numerical (4 & 10):* Mass distribution and Trolley Collision - Elastic and Inelastic collis...

Complete handwritten notes on *Inelastic Collision in Two Dimensions* from 1st Year Physics Chapter 2. *Key Points Covered:* Inelastic collision is observed at macroscopic level. In this type of collision, *Momentum is conserved but Kinetic Energy (K.E) is not conserved*. *Explanation & Derivation Included:* A system of two balls with masses m1 and m2 is considered. m1 moves along x-axis with velocity V1 and m2 moves in XY-plane at angle θ. After collision, both stick together and move ...

1st Year Physics Chapter 2 handwritten notes on Product of Two Vectors. Covers: Scalar Product (Dot Product) A·B = AB cosθ e.g., Work, Power and Vector Product (Cross Product) A x B = AB sinθ n̂ e.g., Torque, Magnetic Force. With neat and clear diagrams, easy to understand and best for quick revision