Answer to Question #263873 in Physics for lovely

Question

1. Compute the acceleration of the block sliding down a 20^o inclined plane if the coefficient of kinetic friction is 0.60.

Answer 1

The block will be in motion if

$$\tan\theta>\mu$$

In our case

$$\tan20^{\circ}=0.36<0.6$$

So, the block is at rest, and acceleration is zero.