Wednesday

August 27, 2014

August 27, 2014

Posted by **Josh** on Tuesday, January 25, 2011 at 3:02am.

What is the tension in the rope connecting the boat and the counterweight?

Formula:

X-axis: m1gcos0=mTa

m2gcos9=mTa

Y-Axis: mgsin0 = 0

So I'm really stuck here. I tried to figure out the relative formula's but I think I'm doing it wrong. I just need help getting started. Thanks!

- Physics -
**bobpursley**, Tuesday, January 25, 2011 at 8:48amIt is uncertain to me where the weight is, vertical or not to the pulley. It matters.

why are these questions labeled physics? Do you have a math teacher teaching physics?

- Physics -
**drwls**, Tuesday, January 25, 2011 at 8:50amI do not know why you have cos9 in the second formula, nor what mTa is supposed to mean. I suppose the number 0 is supposed to be theta (28.6 degrees.

There is no hyphen in coefficient.

I do appreciate your showing your work. Almost no one does that here anymore, and I wish they would.

You need to write two equations of motion: one for the direction of the boat down the ramp, and one for the counterweight in the horizontal direction. Rope tension T will be a second variable you must solve for with the two equations.

390*g sin28.6 - T = 390 a

T - 193*g*(0.507) = 193 a

You can eliminate T by adding the two equations. Once you have a, solve for T using either equation.

**Related Questions**

Physics - A ramp, a pulley, and two boxes. Box A, of mass 10.0 kg, rests on a ...

Physics HELP!! pleasee - an object on an inclined ramp of mass 1.39kg. The angle...

physics ..PLEASE HELP ASSIGN DUE SOON :( - an object on an inclined ramp of mass...

College Physic - can someone help me with this question? Thank you! You have ...

physics 2 - sorry here is actual question: A 285-kg stunt boat is driven on the ...

Physics - A box of mass 54.0 kg is sitting on a ramp which makes an angle of 37....

physics - A 1520-N crate is to be held in place on a ramp that rises at 30.0° ...

frictionless ramp - Suppose a 19.3 kg curling stone was on a frictionless ramp. ...

College Physics - A 26.5 kg block (m1) is on a horizontal surface, connected to ...

physics - A mass m1 = 18.7 kg on a frictionless ramp is attached to a light ...