Question

What is the approximate tangential speed of an object orbiting earth with a radius of 1.8 × 108 m and a period of 2.2 × 104 s?

Answer 1

✅ B. 5.1 × 10⁴ m/s

Step-by-step explanation:

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Answer 2

Angular velocity (ω) = 2π / t
tangential velocity (v) = ωr
v = 2πr / t
v = (2π x 1.8 x 10⁸) / (2.2 x 10⁴)
v = 51,400 m/s