A projectile is fired radially outward from Earth’s surface with a speed of

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

8.0\,\text{km s}^{-1}

. Determine the maximum height

h

above the surface that it will reach before momentarily coming to rest. Take

R_{E}=6.4\times10^{6}\,\text{m}

and the escape speed at the surface as

11.2\,\text{km s}^{-1}