Assuming that up represents the positive direction, which combination of options
ID: 2076152 • Letter: A
Question
Assuming that up represents the positive direction, which combination of options is most accurate? [Enter your answer sheet by filling in the bubbles for each of the options you believe to be correct] (A) If the elevator slows down the net force on the two acrobats is greater than zero. (B) If the elevator slows down, the force of the upper acrobat on the lower one decreases. (C) If the elevator slows down, the weight of the upper acrobat decreases. (D) The upper acrobat is accelerated by the combination of his weight and the force exerted by the lower Which combination of is most accurate? [Enter your response on your answer sheet by filling in the of the options believe to be correct] (A) Momentum conservation implies the principle of reciprocity (action/reaction) (B) A system that does not move has no forces acting on it. (C) The principle of reciprocity ensures that all internal forces cancel out within a system. (D) The force of motion is what keeps an object moving at constant velocity.Explanation / Answer
in he first case, the value of acceleration is upwards, hence the force is greater than zero.
in the second case statement is false and reason is exlained above.
weight remains the same and hence false
the statement is true