A. Speed up is the answer. Hope it is right.
Animal communication on khan academy
The third one is your answer
Ick! Word problems! They suck. Okay so first of all you want to narrow it dow the equation.
Step 1. What are the numbers? (In this case 12 m/s and 25 m/s)
Step 2. Are you multiplying, dividing? (In this case your dividing)
Step 3. Divide.
I hope that helps.
Work = Force x Distance
55 Newton meters = 22 Newton x 2.5 meters