7.18 The escape speed of a projectile on the earth's surface is
PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
7.18 The escape speed of a projectile on the earth's surface is 11.2kms−1. A body is projected out with thrice this speed. What is the speed of the body far away from the earth? Ignore the presence of the sun and other planets.