Recent content by physwha

Yes, it's about the Earth around the Sun for example. PS: I now understand the c but still not k (is it the same?) and 1 / r² :S

hi Our teacher told us the following: F = m * v² / r = m * 4 pi² / T² * r = m * 4 pi² / k * 1 / r² = c * m / r² F = y * mM / r2 Why is there the k and 1 / r² and later the c?