The vertical component of acceleration of a projectile:
Correct answer: B. Is equal to the gravitational acceleration
- A. Is less than the gravitational acceleration
- B. Is equal to the gravitational acceleration
- C. Is more than the gravitational acceleration
- D. Has no relation with the gravitational acceleration
Explanation
The vertical component of acceleration of a projectile is solely determined by gravity, providing a constant acceleration of approximately 9.8 m/s² downward. This means that the vertical acceleration is always equal to the gravitational acceleration, as stated in Option B. Options A and C are incorrect as they suggest variations in acceleration beyond the influence of gravity. Option D is incorrect because it disregards the significant impact of gravity on the vertical motion of a projectile.
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About Force and Motion
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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