I think the correct answer from the choices listed above is option A. In this experiment, sunlight is an independent variable. It is the variable that cannot be changed James no matter what. Hope this answers the question. Have a nice day.
For the problem we will apply the concepts related to Newton's second law. Recall that this is defined as the product between mass and acceleration, and that in special cases, when the acceleration is equivalent to the force of gravity, the force is equivalent to the weight of the person. From these relationships we will find the mass, and then the acceleration with the given force.

Here,
= Force
m = Mass
g = Gravity
Replacing and rearranging we have that the mass is,


Now using the value of the force, but solving for the acceleration with the previous value of the mass we have,




Therefore the acceleration of the box is 
I’m pretty sure it is C third law of motion
I looked it up on google and went through tons of facts about Isaac Nuton
Answer:
phle follow karo yrr tab hee bat u ga