Zorch, an archenemy of Superman, decides to slow Earth’s rotation to once per 29.5 h by exerting a force parallel to the equator, opposing the rotation. He uses an old Saturn V rocket, stolen from NASA, which was originally used to send astronauts to the Moon. This rocket can exert a thrust of F = 4.1 × 107 N.
a) If the original angular velocity of Earth is ω0 and Zorch is trying to get the Earth to an angular velocity of ω, how much time will it take him? Use M and R for the mass and radius of the Earth.
b) How long, in seconds, will it take him to do this? (Notice that this period gives Superman time to devote to thwarting other villains.)
Please ask your doubts or queries in the comment section below.
Please kindly upvote if you are satisfied with the solution.
Thank you.
Get Answers For Free
Most questions answered within 1 hours.