The figure above represents a frictionless pulley system in which a weight W is in equilibrium with a weight of 40N. Find the value of W
13.3N
20.0N
40.0N
80.0N
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The answer is 20N. All the explanationsyou guys arrre giving to supportyour other answers no move me at all. It's frictionless and VR=2, so MA=2as well; But MA=L/E and what we are lookingfor is Effort. Hence, E=L/MA=40/2=20N
In a frictionless pulley, the load is equal to the effort. This is based on the principle of the law of conservation of energy, which states that energy can neither be created nor destroyed, but can only be transformed from one form to another. In a frictionless pulley, the input work done by the effort is transferred to the output work on the load without any loss of energy due to friction. Therefore, the load corresponds to the effort applied, resulting in an equilibrium condition, where both the load and the effort are equal.
Excuse Y'all This is the most appropriate Soving.
V.R= number of pulley which is 2,, for frictionless pulleys M.A = V.R,,::-M.A Is=2 ,,,,,,E is=W,,, L Is= 40N
M.A= L/E ,,, E Is= L/M.A ,,, 40/2= 20N.
hey guys 👋, the answer is 20N very crucial, try to use Google Ai mode to detect errrors in Myschool app🧏🧏🧏
Frictionless does not necessarily mean that load is equal to effort. frictionless means no friction, hence, it's an ideal machine with 100% efficiency. so MA = VR
hey guys 👋, the answer is 20 o. very crucial, try to use Google Ai mode to detect errrors in Myschool app🧏🧏🧏
