Let's say that the angle is 30 degrees, mass is 3.2kg, acceleration is 5.4m/s^2 for the second mass.
So it's (3.2kg)(5.4m/s^2) = - (3.2kg)(9.8m/s^2)sin30 + FT - Ff, then 17.28kg/s^2 = -15.68kgm/s^2 + FT - Ff, then can I add them like this 32.96kgm/s^2 = FT - Ff? After that, can I then solve...
So, for the block on the incline, should I use ma = -mgsinθ + FT to solve for FT. So basically, for the mass hanging use ma = mg - FT, and for the block on the inclined plane, use ma = -mgsinθ + FT? Should I add the two tensions together? If I look for the coefficient of kinetic friction, should...
Oops, I should have written that the hanging mass would be ma = mg - FT, and the acceleration mass would be ma = mg + FT - Ff. I think the force for the hanging mass is negative and the force for the accelerating mass is positive.
According to my course, when I look for acceleration and tension, I have to use the equations ma = mg + FT for the first mass (the one hanging), then for the second mass (the one on the plane), I have to use FN = mgcos, Ff = miuFN and finally ma = mg - FT - Ff. Instead of finding acceleration, I...
It went something like this:
Two blocks are connected by a pulley, one block (block 2, mass is 3.8kg) is on an inclined plane of 40 degrees while another block (block 1, mass is 1.8kg) is hanging by the pulley. Block 2 is accelerating up the plane at 1.2m/s^2. Find the tension and friction.
So, in order to find tension and friction, I just need to use ma = mg + FT for the first mass (the one hanging), then find the second tension by first finding normal force through using FN = mgcosθ, then find the coefficient of friction using μ = tan θ, then use Ff = μFN, and finally use ma = Fg...
The equation (μ = tan θ) comes from Fnet = mgsinθ - μmgcosθ. Supposedly, I can use it to calculate the coefficient of kinetic friction.
I'll try that out. Thanks!
How would solve it if I had to find the net tension of the two masses? I think the first one would just be Fnet = Fg -/+FT, and...
Homework Statement
How do you find tension and friction on an inclined plane given acceleration, two masses and an angle? It's a pulley system, I suppose.
Here's a diagram I drew:
http://postimg.org/image/m9v9i2qy5/
Homework Equations
Fg = ma
The Attempt at a Solution
I was thinking that I...