Your answer is going to be D
Resultant force = mass × acceleration, therefore acceleration = resultant force ÷ mass
Resultant force = 19 - 1.7 = 17.3 N
acceleration = 17.3÷2= 8.65 ms-2
Organic is the answer,
As protein is totally something else.
Also lipids are liquid fats, so the answer is organic
