There are three blocks moving on a surface with static friction = 0.6 and kinetic friction = 0.4. A student applied 34 N of force to move the system of three blocks, but they failed. We can assume the string is massless.

a) Why did the system fail?

b) If 50N of force is applied to the system. Draw fee body diagrams.

c) Write down the equations of motions for all three blocks.

d) What are the net forces?

e) What is acceleration.

f) find the tension and contact force between the first and second block.

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