A pulley is attached to the ceiling (as shown in the figurebelow). Spring scale

Question

A pulley is attached to the ceiling (as shown in the figurebelow). Spring scale A is attached to the wall and a rope runshorizontally from it and over the pulley. The same rope is thenattached to spring scale B. On the other side of scale B hangs anW = 103-N weight.What are the readings of the two scales A and B? The weights of thescales are negligible.
Scale A: ____N Scale B: ____ N A pulley is attached to the ceiling (as shown in the figurebelow). Spring scale A is attached to the wall and a rope runshorizontally from it and over the pulley. The same rope is thenattached to spring scale B. On the other side of scale B hangs anW = 103-N weight.What are the readings of the two scales A and B? The weights of thescales are negligible.
Scale A: ____N Scale B: ____ N

Explanation / Answer

For Scale B,         T = mg = W = 103 N The tension in the rope = 103N So that both the scales read 103N scale A : 103N scale B : 103N

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