A rocket is fired vertically from the surface of an airless planet with an initial…
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A rocket is fired vertically from the surface of an airless planet with an initial speed equal to 0.8 times that planet’s escape speed. Neglecting any other forces, the maximum height reached by the rocket above the planet’s surface will be closest to
(a) 0.67R
(b) 1.8R
(c) 0.8R
(d) 2.8R