Physics · Gravitation and Satellites
Why does an artificial satellite orbiting the Earth not fall back down to the Earth's surface?
- 1Because its high tangential speed provides the necessary centripetal acceleration, matching the curvature of the Earth✓
- 2Because its onboard rockets continuously pull it away from the Earth
- 3Because it is completely outside the atmosphere and gravitational sphere
- 4Because the Earth's gravitational pull becomes zero at that altitude
Correct answer
Because its high tangential speed provides the necessary centripetal acceleration, matching the curvature of the Earth
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