question_answer

    Look at the diagram above and answer the following questions (a) When a force is applied through thefree end of the spring balance A, thereading on the spring balance A is15 g wt. What will be the reading of spring balance B? (b) Write reasons for your answer. (c) Name the force which balance Aexerts on balance B and the force of balance B on balance A.

Answer:

  (a) 15 g wt.                                                                                                                                                                          (1/2) (b) Every action has equal and opposite reaction.                                                                                                             (1) (c) Action force, reaction force.                                                                                                                                 (1/2)