m = 8 kg.
F = 4 N.
According to Newton’s 2 law, the acceleration of a body a is directly proportional to the force F, which acts on the bodies, and inversely proportional to the mass of the body m: a = F / m.
This means that by how many times the force F, which acts on the body, will increase the body’s acceleration a. How many times the force decreases, so many times the acceleration decreases.
The number of times the body mass m is increased, the number of times the acceleration of the body a decreases. How many times the body weight is reduced, the acceleration of the body will increase.
a = 4 N / 8 kg = 0.5 m / s2.
Answer: the body will move uniformly accelerated with a constant acceleration a = 0.5 m / s2.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.