Joe has a mass of 50 kg and Sally has a mass of 30 kg. They sit in class with a separation of 0.5 meters. Find the gravitational attraction between Joe and Sally.

1 answer

Use Newton's universal law of gravity, with the constant G

F = G*m1*m2/R^2

R should be in meters, and masses in kg, if you want the force in Newtons. Look up the value of G if your don't know it. It is NOT the same as g.
Similar Questions
    1. answers icon 2 answers
  1. Tom has a mass of 67.2 kg and Sally has amass of 58.5 kg. Tom and Sally are standing 23 m apart on a massless dance floor. Sally
    1. answers icon 2 answers
  2. Tom has a mass of 69.4 kg and Sally has amass of 42.3 kg. Tom and Sally are standing 27.5 m apart on a massless dance floor.
    1. answers icon 0 answers
  3. Tom has a mass of 72.2 kg and Sally has amass of 49.4 kg. Tom and Sally are standing 17.4 m apart on a massless dance floor.
    1. answers icon 1 answer
more similar questions