Asked by James

The escape speed from a planet of mass 2.5×1024 kg is 7.0 km/s .What is the planet's radius?

I amusing v=sqr(2GM/r)

For G I am using 6.67*10^-11
and for M do I use 5.97*10^24
Answered by Damon
No, use 2.5*10^24 for M