Please show all work and equations and explain. Give answers with units. A 4.94

Question

Please show all work and equations and explain.  Give answers with units.

A 4.94 kg salami is supported by a cord that runs to a spring scale, which is supported by another cord from the ceiling (see Figure (a)}. What is the reading on the scale, which is marked in weight units? (b) In Figure (b) the salami is supported by a cord that runs around a pulley and to a scale. The opposite end of the scale is attached by a cord to a wall. What is the reading on the scale? (c) In Figure (c) the wall has been replaced with a second 4.94 kg salami on the left, and the assembly is stationary. What is the reading on the scale now?

Explanation / Answer

a w = mg = 48.41 N

b) W = T = mg = 48.41 N

c) W =2T = 96.82 N

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