February 25, 2017

Homework Help: physics

Posted by Alice on Friday, December 27, 2013 at 4:34pm.

We release an object of mass M at zero speed at a distance of 2*10^6 Km from the center of the earth. What is the speed at which the object hits the earth?
G=6.67*10^-11; g= 9.8 m/s; M=5.97*10^24;
Suppose the mass of the object is M= 500 kg. What is the kinetic energy of this object when it hits the earth?
Thanks for your help.

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