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You are pulling a sled loaded with books across the snow. The ground is horizontal, but the force of your pull, $F_P$, is angled upwards at $25^\circ$ with respect to the ground. The combined mass of the sled and books is $20\space kg$ and a kinetic friction force of $20\space N$ resists the motion of the sled. If the sled has a horizontal acceleration of $1.5\space m/s^2$, what is $F_P$ and what normal force, $F_N$, acts on the sled?

A

$F_P = 55\space N$
$F_N = 200\space N$

B

$F_P = 50\space N$
$F_N = 200\space N$

C

$F_P = 240\space N$
$F_N = 170\space N$

D

$F_P = 55\space N$
$F_N = 170\space N$

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