(I) A box weighing rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end (Fig. 4-40). Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs a) , and .
Solution 19P: We have find out the force exerted by the table on the box under the application of weight in various denomination, in a pulley-rope system. Step 1 of 5 Concept: Newton’s second law: The force F acts on mass m produces an acceleration a in the object. Mathematically, F=ma Newton’s third law: To every action, there is an equal and opposite reaction.