Two satellites, X and Y, are orbiting Earth. Satellite X is1.2 × 106 m from Earth, and Satellite Y is 1.9 × 105 m from Earth.
Answer
A
Satellite X has a greater period and a faster tangential speed than Satellite Y.
B
Satellite X has a greater period and a slower tangential speed than Satellite Y.
C
Satellite X has a shorter period and a faster tangential speed than Satellite Y.
D
Satellite X has a shorter period and a slower tangential speed than Satellite Y.
Explanation
Satellite X is farther from Earth than Satellite Y (1.2 × 10⁶ m is greater than 1.9 × 10⁵ m). For satellites orbiting the same body, a larger orbital radius means a longer period and a lower tangential speed. Therefore, Satellite X has a greater period and a slower tangential speed, matching choice B.
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