The correct answer is option 4: an acceleration of 1 m/s^2.
When an object experiences a net force, it undergoes acceleration according to Newton`s second law: F = ma, where F is the force, m is the mass, and a is the acceleration.
In this scenario, the object has a mass of 1 kg and is subjected to a force of 1 N. According to Newton`s second law, the acceleration of the object can be calculated by rearranging the formula: a = F/m.
Substituting the given values, we get a = 1 N / 1 kg = 1 m/s^2.
Therefore, the object will experience an acceleration of 1 m/s^2 when subjected to a force of 1 N.
Option 1, a speed of 1 m/s, is incorrect because the question asks for the acceleration, not the final speed of the object.
Option 2, a speed of 1 km/s, is incorrect because the question does not provide enough information to calculate the final speed of the object. It only asks for the acceleration.
Option 3, an acceleration of 10 m/s^2, is incorrect because the correct acceleration calculated is 1 m/s^2,