The body M = 3 kg under the action of force acquires a. Determine the unknown body m if under the action of the same force this body attached to the body m1 = 1 kg acquires the same acceleration in IFR.
Let F be the force under the action of which a body of mass M received acceleration a. According to the condition, a composite body of mass m1 + m under the action of the same force F also received an acceleration a. According to Newton’s second law
F = Ma and F = (m1 + m) a, whence
Ma = (m1 + m) a,
M = m1 + m,
m = M – m1 = 3 – 1 = 2 kg.
Answer: 2 kg.
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.