Which of the free body diagrams depict an object accelerating to the right? in the free body diagrams, which of the objects could be at rest ?
in the above diagrams, which of the objects would be accelerating the fastest?

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material