To solve the problem (assuming a common setup like a block sliding down an incline with negligible friction), let's proceed as follows:

Key Assumptions (based on typical problems):

Suppose the block slides down an incline where the component of gravitational force along the incline is the net force. Let the incline angle be $\theta$ such that $\sin\theta = 0.2$ (a common value leading to a simple acceleration).

Calculation:

The acceleration $a$ of the block down the incline is given by:
$$a = g \sin\theta$$

Taking $g = 10\ \text{m/s}^2$ (for simplicity) and $\sin\theta = 0.2$:
$$a = 10 \times 0.2 = 2\ \text{m/s}^2$$

Answer: $\boxed{2}$

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