Recent content by southernguy13

F=ma 402 = (2.9+5.4+8.4)a a=24.0719 m/s2 a. F=ma F =2.9(24.0719) =69.8084 N b. F=ma F= 5.4(24.0719) =129.988 N c. f=ma F= 8.4 (24.0719) =202.204 N d. I don't know how to find the answer. e. I did 129.988 + 202.204 = 332.192 N. This is correct, but I don't know why.

Homework Statement The surfaces between a 11 kg block, the 16 kg wedge and between the 16 kg wedge and the horizontal plane are smooth (without friction). The acceleration of gravity is 9.8 m/s2 . A block is released on the inclined plane (top side of the wedge). What is the force F which...

I got the last part, I added 129.988 and 202.204 and got 332.192. I just don't know how to get the 2nd to last one, between 5.4 kg and 8.4 kg. I just don't understand what I'm supposed to be finding. Sorry that I keep asking, I just really want to understand this.

Hmm, I can't seem to get it right. The total applied force is 402 N. So for question d, I take 402 and subtract what? I tried 402 - 69.8084 but that isn't correct...

It is confusing the way I'm trying to do it. This is just how I was taught in class, but obviously it isn't the easiest way. F=ma 402 = (2.9+5.4+8.4)a a=24.0719 m/s2 a. F=ma F =2.9(24.0719) =69.8084 N b. F=ma F= 5.4(24.0719) =129.988 c. f=ma F= 8.4 (24.0719) =202.204 Those are all correct...

Homework Statement Three blocks are in contact with each other on a frictionless horizontal surface. A 402 N horizontal force is applied to the block with mass of 2.9 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s2. a. What is the net force on the block with...

Yes! Thank you

Oh I see now. I added the masses together to get 216.1 then used that for the mass. So 681.1/216.1 = 3.15 m/s^2 which is correct! I used that to get the height of the building, 13.34 meters. What I can't figure out is the last question; how many seconds did it take (after starting his...

Homework Statement I uploaded the image with for the problem. The bucket is full of bricks and when the man unties the rope to bring the bucket to the ground, he gets pulled into the air while holding the rope. He goes all the way to the top (taking place in 2.91 seconds). The bricks fell out...