On a snowy day, max (mass = 15 kg) pulls his little sister maya in a sled (combined mass = 20 kg) through the slippery snow. max pulls on the sled with 12 n of force, directed at an angle of 15° above the ground.
when he comes to a recently plowed section of road, he continues to pull the sled with the same force across the road while the road exerts a frictional force of 4 n on sled.

if the sled's speed is 1.5 m/s as max pulls it onto the road, what is the sled's speed after max pulls it 5 m across the road? a)2.0 m/s
b)2.8 m/s
c)2.5 m/s
d)3.2 m/s
e)6.0 m/s