To understand the relationship between applied force, net force, acceleration, a

Question

To understand the relationship between applied force, net force, acceleration, and mass for 1-dimensional motion.

For this problem, use the PhET simulation Forces in 1D Motion. This simulation allows you to push on different objects with a certain horizontal force and see the resulting motion. You can control the mass of the object and its coefficient of friction. While the object is being pushed, you can see graphs showing the force, velocity, acceleration, and/or position as a function of time.

Start the simulation. When you click the simulation link, you may be asked whether to run, open, or save the file. Choose to run or open it.

Click on Graph Applied Force if the graph showing forces isnt already visible. Adjust the applied force by moving the slider bar (which is to the left of the force graph) up or down. You can also adjust the applied force by either typing in a value in the digital display or dragging the object to the left or right, but it is difficult to maintain a constant force this way. Click Go, and watch the resulting motion. You can choose different objects using the menu on the right side of the window, and you can also turn friction off or on.

Feel free to play around with the simulation. When you are done, click Clear and turn off friction prior to beginning Part A.

Change the mass of the file cabinet by first clicking More Controls and then typing in a different mass value.
If the mass of the file cabinet is increased by a factor of three (with the applied force held constant), what happens to the acceleration?

Change the mass of the file cabinet by first clicking More Controls and then typing in a different mass value.
If the mass of the file cabinet is increased by a factor of three (with the applied force held constant), what happens to the acceleration?

The acceleration increases by a factor of three. The acceleration decreases by a factor of three. The acceleration does not change since the force doesnt change. To understand the relationship between applied force, net force, acceleration, and mass for 1-dimensional motion. For this problem, use the PhET simulation Forces in 1D Motion. This simulation allows you to push on different objects with a certain horizontal force and see the resulting motion. You can control the mass of the object and its coefficient of friction. While the object is being pushed, you can see graphs showing the force, velocity, acceleration, and/or position as a function of time. Start the simulation. When you click the simulation link, you may be asked whether to run, open, or save the file. Choose to run or open it. Click on Graph Applied Force if the graph showing forces isn½t already visible. Adjust the applied force by moving the slider bar (which is to the left of the force graph) up or down. You can also adjust the applied force by either typing in a value in the digital display or dragging the object to the left or right, but it is difficult to maintain a constant force this way. Click Go, and watch the resulting motion. You can choose different objects using the menu on the right side of the window, and you can also turn friction off or on. Feel free to play around with the simulation. When you are done, click Clear and turn off friction prior to beginning Part A. Change the mass of the file cabinet by first clicking More Controls and then typing in a different mass value. If the mass of the file cabinet is increased by a factor of three (with the applied force held constant), what happens to the acceleration? Change the mass of the file cabinet by first clicking More Controls and then typing in a different mass value. If the mass of the file cabinet is increased by a factor of three (with the applied force held constant), what happens to the acceleration? The acceleration increases by a factor of three. The acceleration decreases by a factor of three. The acceleration does not change since the force doesn't change.

Explanation / Answer

as F = mv^2/R = mg

if mass = 3 times

F = 3 times * mV^2/R

since F is same

a = F/ m = 1/3 times

accleration must decrases by 3 times

so answer is option 2, aeeleration decreases by a factor of three.

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