Final answer:
The gravitational force between two objects of masses 25kg and 20kg at a distance of 5m is 0.1 N.
Step-by-step explanation:
To calculate the gravitational force between two objects, we can use Newton's Law of Universal Gravitation. The formula for gravitational force is F = G * (m1 * m2) / r^2, where F is the force, G is the gravitational constant (6.674 × 10^-11 N·m^2/kg^2), m1 and m2 are the masses of the objects, and r is the distance between them.
Plugging in the given values, we have F = (6.674 × 10^-11 N·m^2/kg^2) * (25 kg * 20 kg) / (5 m)^2.
Simplifying the equation, we get F = 0.1 N.
Therefore, the gravitational force between the two objects is 0.1 N. So, the correct answer is A) 0.1 N.