Asked by he

page 20 of 20
3 of 3
























































Last part! Until now, your trials have all been without friction. In real life, friction occurs when one surface is moving past another. When pushing or pulling an object, the friction force will always be going in the opposite direction from the applied force. We will do a few trials of the simulation with friction.

Step 9: Return to the Acceleration simulation and start over. CLICK HERE. Make sure the blue button is showing a triangle and that all the boxes are checked.


Step 10: Set the Applied Force to 200 newtons. For these trials, friction will not be changed.





Step 11: Press “play” and count to 10 before clicking pause. Remember to always end your trial before the indicator gets to the end of the speedometer.




Notice the difference friction makes. When friction was set to “none” the applied force and the net force (sum of forces) were the same value. In this version, the friction force is subtracted from the applied force: 200 N - 92 N = 108 N. If two forces are working together in the same direction, they are added together. If the two forces are going in opposite directions, they are subtracted from one another.

When using the formula, F=ma, you will use the net force value for the “F”.

Question 7: Use the information below and the simulation to complete the rest of the data table.

Data must be recorded AFTER pressing "play," not before.
You must press play and then pause to get accurate answers.
Make sure to restart the simulation each time. Do not change the mass while the man is moving.
(2 points)
Question 8: Help Video on solving for acceleration - CLICK HERE

A force of 48 newtons is used to push the pack of water bottles across the surface of a table. The friction between the pack of bottles and the table is 41 newtons. The mass of the bottles combined is 14 kg.



What is the value of the net force acting on the pack of bottles? What is the acceleration of the bottles?
Calculate the net force acting on the bottles (also called the sum of forces). Then calculate the acceleration of the pack of books. Show your work by using the GUESS method. Desmos Calculator.


1 pt - Show work to calculate Net Force and correct value for Net Force. Remember to include your unit of measure.
1 pt - Show work using GUESS method for calculating acceleration.
1 pt - Correct value for acceleration. Remember to include your unit of measure.

(3 points)

All Answers 1

Answered by GPT-5 mini AI
Net force:
Given: F_applied = 48 N, F_friction = 41 N.
F_net = F_applied − F_friction = 48 N − 41 N = 7 N.

Acceleration (GUESS method):
G: Given — F_net = 7 N, m = 14 kg.
U: Unknown — a (acceleration).
E: Equation — Newton’s 2nd law: F_net = m a.
S: Solve — a = F_net / m = 7 N / 14 kg = 0.5 N/kg = 0.5 m/s^2.
S (Statement) — The net force is 7 N and the acceleration is 0.5 m/s^2.