Two blocks are connected by a very light string passing over a massless and fric

Question

Two blocks are connected by a very light string passing over a massless and frictionless pulley (see figure). Traveling at constant speed, the 22.5-N block moves 69.0 cm to the right and the 11.8-N block moves 69.0 cm downward. (Let w1 = 22.5 N and w2 = 11.8N.)

Two blocks are connected by a very light string passing over a massless and frictionless pulley (see figure). Traveling at constant speed, the 22.5-N block moves 69.0 cm to the right and the 11.8-N block moves 69.0 cm downward. (Let w1 = 22.5 N and w2 = 11.8N.) During this process, how much work is done on the 11.8-N block by gravity? During this process, how much work is done on the 11.8-N block by the tension in the string? During this process, how much work is done on the 22.5-N block by gravity? During this process, how much work is done on the 22.5-N block by the tension in the string? During this process, how much work is done on the 22.5-N block by friction? During this process, how much work is done on the 22.5-N block by the normal force? Find the total work done on the 11.8 N block. Find the total work done on the 22.5 N block.

Explanation / Answer

a) W = w2h =8.142 J

W = T.d = 8.142 J

b) During this process, how much work is done on the 22.5-N block by gravity
w = 0

c) total work done on the 11.8 N block = 8.142 J

total work done on the 22.5 N block = 8.142 J

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