At what angle made by projectile with x-axis we can get 1/4th value of maximum height achieved by projectile?
Correct answer: A. 30°
- A. 30°
- B. 45°
- C. 60°
- D. 90°
Explanation
The maximum height of a projectile is proportional to the square of the sine of the angle of projection. For the height to be 1/4th of maximum height, the sine of the angle must be halved. This occurs at 30°, where the sine value is smaller compared to 45° or 60°. Hence, 30° is the angle at which the maximum height becomes 1/4 of its potential maximum value. Other angles such as 45°, 60°, and 90° do not satisfy this condition.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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