Mass A (7 kg) and mass B (10 kg) sit on the ground, 2 m apart.
a.) What is size of the the gravitational force:
on A from B? N
on B from A? N
b.) What is the size of the gravitational force:
on A from the Earth? N
on B from the Earth? N
once again, i am using the wrong equation! please help...
GravityForce=G*MA*MB/distance^2
To do part b, you will need the radius of the Earth, not the distance between A and B. OR you can just multiply the mass (A or B) by g.
To calculate the gravitational force between two objects, you can use Newton's law of universal gravitation, which states that the force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
The formula for calculating the gravitational force is:
F = (G * m1 * m2) / r^2
Where:
F is the gravitational force between the two objects,
G is the gravitational constant (approximately 6.67430 × 10^-11 N m^2/kg^2),
m1 and m2 are the masses of the two objects, and
r is the distance between the centers of the two objects.
Now let's calculate the gravitational forces between the objects.
a.) Gravitational force on A from B:
Using the formula, we have:
FAB = (G * mA * mB) / r^2
Substituting the values:
FAB = (6.67430 × 10^-11 N m^2/kg^2 * 7 kg * 10 kg) / (2 m)^2
Calculating this will give you the gravitational force on A from B in Newtons (N).
b.) Gravitational force on A from the Earth:
Using the same formula, we have:
FAE = (G * mA * mEarth) / r^2
The mass of the Earth is approximately 5.972 × 10^24 kg, so:
FAE = (6.67430 × 10^-11 N m^2/kg^2 * 7 kg * 5.972 × 10^24 kg) / (2 m)^2
This will give you the gravitational force on A from the Earth in Newtons (N).
Similarly, you can calculate the gravitational force on B from A and B from the Earth using the same formula.
Remember to use the correct units when plugging in the values into the formula to get the result in Newtons (N).