Centripital F. : Solve for Velocity given ax and r

[subzero800]

Homework Statement

Find the speed of an orbiter in a circular orbit that is just above the surface of a planet, given that the orbiter's acceleration is equal to the planet's gravitational acceleration of 1.88 m/s2. The radius of the planet is 1.33 x10⁶ m.

Homework Equations

a=v²/r

The Attempt at a Solution

I have done : √(1,330,000 m * 1.8 m/s²)

with a result of 1547.255 m/s. I'm not sure what part I'm not comprehending -- thank you in advance for any light you can shed on this!

 

[Doc Al]

I have done : √(1,330,000 m * 1.8 m/s²)

with a result of 1547.255 m/s. I'm not sure what part I'm not comprehending -- thank you in advance for any light you can shed on this!

Except for rounding off 1.88 m/s^2 to 1.8 for some reason, your work looks fine. Redo that calculation.

 

[subzero800]

That was it, Thanks Doc!