A: Space Rockets are usually launched in the equatorial line from west to east

B: Acceleration due to gravity is minimum at equator

C: If the velocity of orbiting satellite is increases by $41.4\%$ it escape at any height

D: Keplers second law is consequence of conservation of angular momentum

Space Rockets are usually launched in the equatorial line from west to east, so it can use the rotation of earth for having higher velocity.

Acceleration due to gravity is minimum at equator. 

If the velocity of orbiting satellite is increases by $41.4\%$ it escape at any height. $\left({\mathrm{v}}_{\mathrm{o}}=\sqrt{\mathrm{gr}},{\mathrm{v}}_{\mathrm{e}}=\sqrt{2\mathrm{gr}}\right)$

Kepler's second law is consequence of conservation of angular momentum.