# Physics

A stationary arrangement of two crayon boxes and three cords. Box A has a mass of 11.0kg and is on a ramp at angle è=30.0 degrees; box B has a mass of 7.00 kg and hangs on a cord. The cord connected to Box A is parallel to the ramp which is frictionless (a) What is the tension in the upper cord, and (b) what angle does that cord make with the horizontal?

Let TA = tension force in the cord attached to block A.
TB = tension force in the cord attached to block B.
TC = tension force in the cord attached to ceiling.
ö = angle of cord attached to ceiling with the horizontal
è = angle of ramp = 30 degrees

1.Ta-magsin
2.Tb-mbgsin=0
3.Tcsin=magsin+mbg
4.Tccos=magsin
5=T^2c(cos^2+sin^2)

that's what I know so far (on what equations to use for each step)

What is this Upper cord? Where is it attached?

Upper cord. I have a pic but this site but I can't because the site won't allow me to

1. 👍 0
2. 👎 0
3. 👁 569
1. 106 N and 64deg.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### physics

The figure shows a stationary arrangement of two crayon boxes and three cords. Box A has a mass of 12.6 kg and is on a ramp at angle θ = 28.9o; box B has a mass of 6.06 kg and hangs on a cord. The cord connected to box A is

asked by mik on April 23, 2017
2. ### physics

Shows three boxes connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The mass of the boxes are mA = 5 kg, mB = 2 kg, and mC = 3kg. Given that there is no friction

asked by HL on June 27, 2019
3. ### science plz correct me

Which of the following boxes would have the strongest gravitational pull on a third object positioned at an equal distance from both boxes? Box A: 100 g Box B: 10,000 g A. box b because it has more mass B. box a because it has

asked by cat on November 1, 2016
4. ### Science last question

Which of the following boxes would have the strongest gravitational pull on a third object positioned at an equal distance from both boxes? Box A: 100 g Box B: 10,000 g A. box b because it has more mass B. box a because it has

asked by Anne on April 16, 2015
5. ### Science 7

Which of the following boxes would have the strongest gravitational pull on a third object positioned at an equal distance from both boxes? Box A: 100 g Box B: 10,000 g A. box b because it has more mass B. box a because it has

asked by cat on November 1, 2016
1. ### phyics help nedded

In the figure below, three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are mA = 24.0 kg, mB = 40.0 kg, mC = 30.0 kg. (a) When the

asked by some one on October 19, 2012
2. ### Physics helppp

In the figure below, three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are mA = 30.0 kg, mB = 40.0 kg, mC = 28.0 kg. The image is a

asked by Sam on July 14, 2010
3. ### Math

A jar contains 1 blue crayon, 1 green crayon, 1 black crayon, and 1 red crayon. You grab 1 crayon without looking. Find the sample space for this experiment.

asked by George on April 30, 2013
4. ### Physics

Two boxes, A and B, are connected to each end of a light vertical rope. A constant upward force 90.0N is applied to box A. Starting from rest, box B descends 11.0m in 3.50s . The tension in the rope connecting the two boxes is

asked by Jordan on February 17, 2015
5. ### physics

Three boxes are connected by cords, one of which (mA) wraps over a pulley having negligible friction on its axle and negligible mass and two boxes (mB & mC) are hanging. The masses are mA = 22.0 kg, mB = 40.0 kg, mC = 16.0 kg.

asked by **chocolatekisses on February 8, 2007

More Similar Questions