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FAQs on Projectile Motion - Theory Sheet, Class 11 Physics

1. What is projectile motion?
Ans. Projectile motion refers to the motion of an object that is projected into the air at an angle and follows a curved path under the influence of gravity. It can be described as the combination of horizontal motion (constant velocity) and vertical motion (free fall).
2. How is the trajectory of a projectile determined?
Ans. The trajectory of a projectile is determined by its initial velocity, launch angle, and the acceleration due to gravity. The horizontal motion remains constant, while the vertical motion is influenced by gravity. The path followed by the projectile is a parabola.
3. What are the key equations used to analyze projectile motion?
Ans. The key equations used to analyze projectile motion are: - Range (horizontal distance traveled) = (initial velocity * time of flight * cos(angle)) - Maximum height = (initial velocity^2 * sin^2(angle)) / (2 * acceleration due to gravity) - Time of flight = (2 * initial velocity * sin(angle)) / acceleration due to gravity
4. How does the angle of projection affect the range of a projectile?
Ans. The angle of projection significantly affects the range of a projectile. The range is maximum when the angle of projection is 45 degrees. For angles greater than 45 degrees, the range decreases, while for angles less than 45 degrees, the range also decreases.
5. Can the horizontal and vertical motions of a projectile be treated independently?
Ans. Yes, the horizontal and vertical motions of a projectile can be treated independently because they are not dependent on each other. The horizontal motion remains constant, while the vertical motion is influenced by gravity. This allows us to analyze each motion separately using the appropriate equations.
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