Acceleration due to gravity _ with height above the earth .
Correct answer: A. Decreases
- A. Decreases
- B. Increases
- C. Remains constant
- D. Varies irregularly
Explanation
The correct answer is 'Decreases'. As you move higher above the Earth, the gravitational force becomes weaker, leading to a decrease in acceleration due to gravity. This is because gravity is stronger closer to the Earth's center, and it diminishes with distance. Options 'Increases', 'Remains constant', and 'Varies irregularly' are incorrect as they do not accurately describe the relationship between gravity and height.
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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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