This planet would be known as pluto
Answer: plane speed is 94.87m/s
Explanation: since the plane move upward in a semicircular path, the acceleration is a centripetal acceleration with radius of 500metre. But the Centripetal acceleration is given as
Centripetal acceleration
= Speed ²/radius
Making speed subject of formula we have,
Speed² = centripetal acceleration*radius
Speed² = 18*500
=9000
Speed =√9000
= 94.87m/s
A. Velocity of planet and gravity between sun and planet
