Hello, Can someone please explain me: F=G m1xm2/R^2 In potential energy U=mgh Generally it is also written that: U=-Gxm1xM2/r+K. How -G comes into play? Also Newton's above law of Gravitation in vector form is written as: F_12=-Gm1m2/r12^2 r12 Here also how -G comes into play? Coming to Gravitation acceleration: If one of the masses is larger than the other, gravitational field is defines as: g=-GM/r^2xr_hat How again -G comes into play? If somebody can explain in a step by step method............. Thanks, -- Shounak
Upper-case G is the universal gravitational constant. It is basically just a conversion factor. It is negative by convention.
Hello, What is the conversion factor? Does that mean the equation for G and -G are the same? -- Shounak
Hello Shounak! This thread is similar to your other thread, https://www.physicsforums.com/showthread.php?t=662573 Is there anything here that has not yet been answered there?