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January 29, 2015

Homework Help: Physics plz help .

Posted by Shashanoid on Saturday, November 2, 2013 at 11:38pm.

A meteorite of mass m= 2 10^4 kg is approaching head-on a planet of mass M= 6 10^29 kg and radius R= 8 10^4 km. Assume that the meteorite is initially at a very large distance from the planet where it has a speed v0= 7 10^2 km/s. Take G= 6.67 10^−11.

Determine the speed of the meteorite v (in m/s) just before it hits the surface of the planet. (The planet has no atmosphere, so we can neglect all friction before impact)

v=

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