College

The 68-kg crate is stationary when the force \( P \) is applied. Determine the resulting acceleration of the crate if:

(a) \( P = 0 \)
(b) \( P = 181 \, \text{N} \)
(c) \( P = 352 \, \text{N} \)

Note: The acceleration is positive if it is up the slope and negative if it is down the slope.