Multiple choice

A 5 kg object attached to a nylon cord outside a space vehicle is traveling in a circular orbit of 10 m radius with a speed of 4 m/s. What is the force acting on the cord?

  1. 2 N

  2. 4 N

  3. 6 N

  4. 8 N
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The centripetal force is calculated as F = (m * v^2) / r. Given m = 5 kg, v = 4 m/s, and r = 10 m: F = (5 * 16) / 10 = 80 / 10 = 8 N.

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