Answers

2014-09-25T12:19:21+05:30
Using the formula  g=Gm1m2/Rsquare....
and substituting values.. we get g=9.8N



3 4 3
2014-09-25T20:28:36+05:30
F=GMm /R^2  M=Mass of the earth =6 x10*24kg  m=mass of the body=1kg,R= Radius of the earth=6.4 x10*3m,G=Gravitational constant=6.67 x10*-11Nm*2/kg*2   then F=6.67 x10*-11x6 x10*24 x1/6.4 x6.4 x10*3 x10*3 =6.67 x6 x10*13/6.4 x6.4 x10*6 =667 x6 x10*7/64 x64=0.97705 x10*7 =9.7705 x10*6N
5 2 5