projectile motion
Overview
This lesson explores projectile motion, the two-dimensional movement of an object launched into the air under the sole influence of gravity. We will analyze the independent horizontal and vertical components of motion and apply kinematic equations to solve problems involving trajectories, range, and maximum height.
Introduction to Projectile Motion
Projectile motion describes the movement of an object that is thrown or launched into the air and is subject only to the force of gravity. Crucially, we typically *neglect air resistance* in A-Level problems unless explicitly stated. This simplification allows us to treat the horizontal and vertical...
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Key Concepts
- Projectile: An object moving through the air under the influence of gravity only.
- Trajectory: The path followed by a projectile, typically a parabola.
- Range (R): The horizontal distance covered by a projectile.
- Maximum Height (H): The greatest vertical displacement reached by a projectile.
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Exam Tips
- →Always resolve initial velocity into horizontal and vertical components *first*. This is a common starting point and earns marks.
- →Remember that horizontal velocity is constant (a_x = 0) and vertical acceleration is always -g (downwards) when neglecting air resistance.
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