Question

If the man weighs 100n on earth, then his weight on a planet whose mass is doubled that

of earth but diameter is half that of earth is ……….newtons.​

Answer 1

Answer:

The equation to use is F = G(m1)(m2)/r^2, where F is the force felt (100N), and G is the gravitational constant, m1 is the mass of the planet, m2 is the mass of the body, and r is the distance to the planet’s surface.

On Earth:

100 = G(m1)(m2)/r^2; G and m2 are going to stay the same in both equations, so:

100 = m1/r^2 is the parts that change.

On the new planet:

Force = 4m1/(2r)^2 = 4m1/4r^2 = m1/r^2.

So… it would weigh 100N on Earth..

Explanation:

hope it helps u..