A $9\mathrm{.}0$ N force parallel to an incline is applied to a $1\mathrm{.}1$ kg crate. The ramp is tilted at $18$ and is frictionless. $($Enter the magnitudes in m$/$s$2.)$

$($a$)$

What is the acceleration of the crate up the ramp?

m$/$s$2$

$($b$)$

If all other conditions are the same but the ramp has a friction force of $1\mathrm{.}1$ N$,$ what is the acceleration?

m$/$s$2$