2. the escape speed of a projectile on the earth's surface is 11.2 km/s. 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.
a) 3.17
b) 31.7
c) 1.59
d) 15.9​

avatarmeri15    2   30.10.2019 09:43    0