Accounting for Friction 1. Adjust the hanging mass so that the cart is balanced.
ID: 1998264 • Letter: A
Question
Accounting for Friction 1. Adjust the hanging mass so that the cart is balanced. When released from rest, the cart shouldn't move. 2. Give the cart a gentle initial push uphill. Does it speed up? Then you have too much hanging mass. 3. Give the cart an initial push downhill. Does it speed up? Then you have too little hanging mass. 4. Try recording some data. If the system is truly balanced, the slopes for uphill and downhill should be th same 5. Record this equilibrium mass. 6. Increase the hanging mass so that when you give the cart an initial push uphilL it coasts at a constant speed. Record some data and adjust this as close as possible. Record this extra mass as the friction mass below. initial mass 38g frictional mass 0.21 0.20 Linear 0.19 mit b m -0.00845 t 3,6xi0 0.18 b 0.159 7.1x10 r -0.972 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.10 Time (s) Accounting for Friction Run 2 H Run #4Explanation / Answer
Before going to the objective of this lab, let me explain to you the various frictional forces taht act between two surfaces:--
Consider a body on a surface, kept at rest. Now when we apply force on it, to make it move the force acting on it is the static friction [unless it moves].
When it just moves [constant speed, without accelerating], then the frictional force acting between the two surfaces is known as limiting friction.
Once the body starts to accelerate, the friction force acting between the body and the surface its moving on, is known as the kinetic friction.----
So by now, if you go through the sequences of measurements carried out here, you have the objective of this lab!
Objective:
To study / calculate the static, limiting and kinetic frictional force acting between two surfaces [between the cart and the inclined plane].
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.