Projectile Motion
Physics ⇒ Mechanics
Projectile Motion starts at 9 and continues till grade 12.
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A projectile is launched at an angle θ with initial speed u. At what point(s) during its flight is its velocity perpendicular to its acceleration?
A projectile is launched from a height h above the ground. How does the time of flight compare to a projectile launched from ground level with the same initial velocity and angle?
A projectile is launched from the ground at an angle θ with speed u. What is the formula for its horizontal range?
Explain why the horizontal and vertical motions of a projectile are independent of each other.
A ball is thrown horizontally from a 20 m high tower. If it lands 40 m away from the base, what was its initial speed? (Take g = 10 m/s²)
A ball is thrown horizontally from the top of a 45 m high cliff with a speed of 10 m/s. How long does it take to reach the ground? (Take g = 9.8 m/s²)
A football is kicked at 15 m/s at an angle of 45° to the horizontal. What is its range? (Take g = 10 m/s², sin 90° = 1)
A projectile is launched at 20 m/s at an angle of 60° above the horizontal. What is the vertical component of its initial velocity? (Take sin 60° = 0.866)
A projectile is launched at an angle θ with the horizontal. Which of the following expressions gives the maximum height (H) reached by the projectile?
(1) H = (u² sin²θ)/(2g)
(2) H = (u² cos²θ)/(2g)
(3) H = (u² sinθ)/(g)
(4) H = (u²)/(2g)
Which of the following best describes the acceleration of a projectile in flight (neglecting air resistance)?
(1) Zero
(2) Constant and downward
(3) Constant and upward
(4) Varies with time
Which of the following is NOT a characteristic of projectile motion?
(1) Constant horizontal velocity
(2) Constant vertical acceleration
(3) Constant total velocity
(4) Parabolic trajectory
Which of the following quantities remains constant throughout the flight of a projectile (neglecting air resistance)?
(1) Vertical component of velocity
(2) Horizontal component of velocity
(3) Magnitude of velocity
(4) Acceleration in the horizontal direction
The angle at which the horizontal range of a projectile is maximum is ________.
The equation for the trajectory of a projectile (y as a function of x) is given by ________.
The path followed by a projectile under the influence of gravity (neglecting air resistance) is called a ________.
The time of flight of a projectile launched from ground level and landing at the same level is given by ________.
If two projectiles are launched with the same speed but at complementary angles (θ and 90°–θ), will they have the same range?
Is it possible for a projectile to have zero horizontal displacement?
Is the horizontal range of a projectile dependent on the acceleration due to gravity?
True or False: The acceleration of a projectile at the highest point of its trajectory is zero.
