How does mass affect acceleration?

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SUMMARY

The forum discussion centers on an experiment conducted to determine how varying the mass of a trolley affects its acceleration down a slope. Despite increasing the mass by 50 grams, the acceleration remained constant, contradicting Newton's Second Law (F = ma), which suggests that acceleration should change with mass. The key variables identified include the dependent variable (acceleration), the independent variable (mass of the trolley), and controlled variables (angle of slope and distance traveled). The discussion invites further exploration of the forces acting on the trolley to clarify this unexpected outcome.

PREREQUISITES
  • Understanding of Newton's Second Law of Motion
  • Basic knowledge of physics concepts such as force, mass, and acceleration
  • Familiarity with experimental design and variable control
  • Ability to analyze motion on an inclined plane
NEXT STEPS
  • Explore the relationship between force, mass, and acceleration in different contexts
  • Investigate the effects of friction on acceleration in inclined plane experiments
  • Learn about the role of gravitational force in accelerating objects down slopes
  • Review case studies or experiments that demonstrate the principles of dynamics in real-world applications
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the principles of motion and the effects of mass on acceleration in practical experiments.

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Homework Statement



Hello all. I performed an experiment in Physics class to attempt to answer the following question:

How will changing the mass of a trolley affect its acceleration when it goes down the slope?

I changed the mass of a trolley on each trial, let it go down a slope, and measured its acceleration. I added a total of 50 grams to the trolley but the acceleration always remained constant. I am perplexed as to how this happened.

Variables:

  • Dependent (measured): acceleration
  • Independent (being changed): mass of trolley
  • Controlled (kept stable): angle of slope and distance traveled

Homework Equations



F = ma

The Attempt at a Solution



Newton's Second Law states that mass and acceleration are inversely related (i.e, if mass increases, acceleration should increase), but such case did not happen. How did it not?
 
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What force (F) do primarily work on the trolley when it accelerates down the slope? Perhaps you can write up an equation for F and equate that to ma and see if there is something you can reduce away.
 

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