Respuesta :
Without air resistance, a projectile fired horizontally at 8 km/s from a mountain top will:
- Return to its starting position and repeat its falling behavior.
- Accelerate downward at g as it moves horizontally.
- Trace a curve that matches Earth's curvature.
What is Gravity?
All objects with mass or energy are drawn to one another by the basic interaction of gravity. Gravity is by far the weakest of the four fundamental interactions, and is greatly outweighed by the electromagnetic force, the weak interaction, and the strong interaction. As a result, it has little effect on phenomena occurring at the level of subatomic particles. However, gravity is the most significant interaction between objects at the macroscopic level and controls the motion of planets, stars, galaxies, and even light.
Similar to how gravity on Earth gives weight to physical objects, the Moon's gravity creates sublunar tides in the oceans (the corresponding antipodal tide is caused by the inertia of the Earth and Moon orbiting one another). Additionally, gravity is a key factor in a variety of biological processes, such as gravitropism, which controls plant development, and the fluid movement in multicellular organisms. Research on the consequences of weightlessness indicates that gravity may have an impact on how the immune system and cells differentiate in the human body.
To learn more about gravity visit:
https://brainly.com/question/29855375
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