Positive six and negative sixteen
As you already written, you have to use Newton's law

where F is the force, m is the mass, and a is the acceleration.
You already know the mass and the force, so you have to solve the equality for the acceleration:

plug the given values:

The correct choice is D!
Hope this helped you out! :)
Answer:
10
Step-by-step explanation:
2+5 = 7
35/7 = 5
2 × 5 = 10
hope this helps...
The answer is 5 times deeper. Boat = 15
75/15 = 5