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Short Tricks: Projectile Motion Video Lecture | Physics Class 11 - NEET

Q: 3. What are the key equations used in projectile motion?

Ans. The key equations used in projectile motion include:- Horizontal velocity: v_x = v * cos(θ)- Vertical velocity: v_y = v * sin(θ)- Time of flight: t = 2 * v * sin(θ) / g- Maximum height: h_max = (v^2 * sin^2(θ)) / (2 * g)- Range: R = (v^2 * sin(2θ)) / g

FAQs on Short Tricks: Projectile Motion Video Lecture - Physics Class 11 - NEET

1. What is projectile motion?

Ans. Projectile motion refers to the motion of an object that is launched into the air and moves in a curved path under the influence of gravity alone. It can be described as the combination of horizontal motion at a constant velocity and vertical motion under constant acceleration.

2. How is the trajectory of a projectile determined?

Ans. The trajectory of a projectile is determined by the initial velocity, launch angle, and gravitational force acting on the object. By analyzing these factors, one can calculate the maximum height reached, the range covered, and the time of flight for the projectile.

3. What are the key equations used in projectile motion?

Ans. The key equations used in projectile motion include: - Horizontal velocity: v_x = v * cos(θ) - Vertical velocity: v_y = v * sin(θ) - Time of flight: t = 2 * v * sin(θ) / g - Maximum height: h_max = (v^2 * sin^2(θ)) / (2 * g) - Range: R = (v^2 * sin(2θ)) / g

4. How does air resistance affect projectile motion?

Ans. In most cases, the effects of air resistance on projectile motion are negligible. However, for objects with larger surface areas or higher velocities, air resistance can have a noticeable influence. It can cause a decrease in the range and affect the trajectory by causing a slight deviation from the ideal parabolic path.

5. Can the launch angle of a projectile affect its range?

Ans. Yes, the launch angle of a projectile can significantly affect its range. The maximum range is achieved when the launch angle is 45 degrees, as it allows for the maximum horizontal distance traveled. Any increase or decrease in the launch angle from 45 degrees will result in a shorter range.

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Sep 23, 2025 Last updated

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