Question

1. According to the equation for gravitational force, what happens to the force between 2 bodies if the mass of one body is doubled ?
2. If there is an attractive force between all objects, why do we not feel ourselves gravitating toward massive buildings in our surroundings?
3. Is the force of gravity stronger on a piece of iron than a piece of wood if both have the same mass?
4. An apple falls because of the gravitational attraction of earth. What is the gravitational attraction of apple on the earth?

Answer 1

Answer:

1. gravitational force will increase by multiple of 2

2. because the gravitational force between building is comparatively negligible to earth.

3. No

4. 6.67 x10raise to -11

Answer 2

Answer:

1. force between them doubles.

2. Because the gravitational force due between us and our surroundings is very small because of the gravitational constant being very small.

3. No, since both have the same mass, force acting on them is the same.

4. the attraction of the apple on earth is the same as that of the earth on apple, but the earth doesn't move as it has a very large mass and hence, a very large inertia.