Projectile Motion and Kinetics Lecture

Jul 2, 2024

Projectile Motion and Kinetics

Introduction

  • Today's lecture will cover all the concepts of Projectile Motion.
  • We will discuss several previous years' questions and tricks/mental methods.

Lecture Format

  • Pause the lecture video and solve questions.
  • Download the practice sheet from the app after the lecture finishes.
  • If you do not understand the questions from the practice sheet, watch the video solutions the next day.
  • How to increase marks in Kinetics:
    • Lecture + Practice Sheet => High chance of scoring 150+ to 160+ marks.

Main Points of Kinetics:

Ground-to-Ground Projectile

  • 3 types of motion:
    • Horizontal
    • Vertical
    • Combined (both)

Mathematical Expression

Practical Application:

  1. Calculating Time of Flight:
    • Formula: $T = \frac{2U \sin\theta}{g}$
  2. Calculating Range:
    • Formula: $R = \frac{U^2 \sin{2\theta}}{g}$
  3. Calculating Maximum Height:
    • Formula: $H = \frac{U^2 \sin^2{\theta}}{2g}$
  • Additionally, many tips and tricks will be provided during practice.

Advanced Concepts

  • When a projectile is launched from a height, the following points still apply:
    • 3 components of motion:
      1. $\Delta y = \frac{1}{2}gt^2$
      2. $\Delta x = U_xt$
      3. Use of kinematic equations independently for each component.

Previous Year's Questions and Other Practices:

  • Mainly covers questions from Net's practice sheets and emphasizes projectile motion.
  • Some difficult questions

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