Jamal Pulls a 150-N Sled Up a 28 $\degree$ Slope at Constant Speed by a Force of 100 N

Multiple Choice

Jamal pulls a 150-N sled up a 28.0 $\degree$ slope at constant speed by a force of 100 N.Near the top of the hill he releases the sled.With what acceleration does the sled go down the hill?

A) 1.20 m/s²
B) 1.67 m/s²
C) 2.22 m/s²
D) 2.67 m/s²