The gravitational force of sun is the strongest because sun has the largest mass and acceleration due to gravity of about 275 m/s².
According to Newton's second law of motion, the gravitational force exerted by each planet or object is directly proportional to acceleration due to gravity and the mass of the object or planet.
The magnitude of the gravitational force is calculated as;
F = mg
where;
<em>m is the mass of the object</em>
<em>g is the acceleration due to gravity</em>
Therefore, the gravitational force of sun is the strongest because sun has the largest mass and acceleration due to gravity of about 275 m/s².