I've been doing that "Mcat question of the day" service for the past few weeks, and I've generally been able to get 90% of them right. I usually only mess up the ones that require some actual pre-requisite knowledge that I have not learned yet. I got this question today, and I couldn't help but wonder if there are questions on the test that are this common-sense based?
If the escape velocity of a rocket from the surface of the Earth is ve, then the escape velocity of the same rocket from the surface of a planet whose acceleration due to gravity as well as radius are 4 times that of the Earth is
(a) 4ve
(b) ve/4
(c) ve
(d) 16ve
If the escape velocity of a rocket from the surface of the Earth is ve, then the escape velocity of the same rocket from the surface of a planet whose acceleration due to gravity as well as radius are 4 times that of the Earth is
(a) 4ve
(b) ve/4
(c) ve
(d) 16ve