The next two questions pertain to the following situation. Two blocks are attach

Question

The next two questions pertain to the following situation. Two blocks are attached by a string over a pulley, and the larger mass, M = 4.5 kg is attached to a spring (with spring constant k = 110 N/m and a relaxed length L0 = 35 cm) to the wall, while the smaller mass, m = 1.3 kg is hanging, as shown. The table is frictionless, and the system is released so that it reaches equilibrium.

Now the spring system is held so that the spring has a length L' = 92.1318181818182 cm. When it is released, what is the y-component of block m's acceleration?

(Note: Positive and negative directions are defined in the figure.)

ay = 12.7 m/s2

ay = 9.86 m/s2

ay = 8.64 m/s2

ay = 11.1 m/s2

ay = 15.3 m/s2

ay = 38.5 m/s2

Explanation / Answer

Option number 2 is correct.

Because when block of mass m is released, it is like example of free fall.

In this case acceleration 9.8 m/s^2

So option 2 is correct.

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