A $1,460-$N crate is being pushed across a level floor at a constant speed by a force

F

of $210$ N at an angle of $20\mathrm{.}0\backslash$deg below the horizontal, as shown in the figure a below.

Two figures show a side view of a crate positioned upon a horizontal surface.

Figure $($a$)$: An arrow pointing downward and to the right is labeled vector F and forms an angle of $20\backslash$deg below the horizontal as it approaches the upper left edge of the crate.

Figure $($b$)$: An arrow pointing upward and to the right is labeled vector F and forms an angle of $20\backslash$deg above the horizontal as it extends from the upper right edge of the crate.

$($a$)$ What is the coefficient of kinetic friction between the crate and the floor? $($Enter your answer to at least three decimal places.$)$

$0\mathrm{.}1288$

Correct: Your answer is correct.

$($b$)$ If the $210-$N force is instead pulling the block at an angle of $20\mathrm{.}0\backslash$deg above the horizontal, as shown in the figure b$,$ what will be the acceleration of the crate? Assume that the coefficient of friction is the same as that found in part $($a$).$

Incorrect: Your answer is incorrect.