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ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1358006505942:dw

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0can u draw components indicate +and 

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1Have you learned about FBD?

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0i am always getting TMg cos 60 =Ma

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1So the next step is to isolate the object and put all forces that are applied TO the body.

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1Memorizing formulas is dangerous, because sometimes theta can refer to something else.

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1358006756106:dw

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0i did not memorize i drew FBD

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0something wrong with vectors

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1358006741723:dw Do you have something like this?

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1According your your FBD, "TMg cos 60 =Ma" is not correct.

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1That's good. Can you continue?

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0yes i can but i am getting acceleration as 

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1358007157522:dw

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0M is 5kg for both find the acceleration

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1358007244777:dw So you have two unknowns (T and a) and two equations. :)

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0ok so i got mgsin 30mgsin 60=ma+ma

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0m=5kg for both i got a=1.830 which is wrong

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1Your equation assumed that the masses accelerate DOWN the 30 deg. plane, so a<0 is correct! :)

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1It is logical that the masses slide down the 60 deg. plane. So put mg sin(60)T = ma , and Tmg sin(30) = ma This assumes mgsin(60)>T (=> a>0) and T>mg sin(30) , again => a>0

ksaimouli
 2 years ago
Best ResponseYou've already chosen the best response.0so what ur doing is making accelration + right

mathmate
 2 years ago
Best ResponseYou've already chosen the best response.1You don't always have to guess the direction right the first time. Make a reasonable guess, using logic, and if it comes out negative, reexamine to see if it is logical, or if you made a mistake. This is how scientiests work: examine the work when there is a surprise.
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