# Thread: Mechanics A level question

2. ## Re: Mechanics A level question

Originally Posted by abdulrehmanshah
here's a clue ...

$\displaystyle \sum{F_x} = 0$

$\displaystyle \sum{F_y} = 0$

sketch a diagram of the forces acting on the hanging mass and come up with a pair of equations reflecting the condition of static equilibrium in the x and y directions.

3. ## Re: Mechanics A level question

i find the angle A Tan^-1(1.5/4) then what to do
please be kind direct me to somewhere

4. ## Re: Mechanics A level question

in the x-direction ...

force component left = force component right

$\displaystyle T\cos{\theta} = 4$

solve for $\displaystyle T$

5. ## Re: Mechanics A level question

i love u thanks a lot

6. ## Re: Mechanics A level question

but i got 0.3 kg as the mass where it should be 0.8kg?

7. ## Re: Mechanics A level question

Originally Posted by abdulrehmanshah
but i got 0.3 kg as the mass where it should be 0.8kg?
in the y-direction ...

forces up = forces down

$\displaystyle T + T\sin{\theta} = Mg$

8. ## Re: Mechanics A level question

why did u add T to Tsintheta T is not a vertical force it is diagonal any justification for that

9. ## Re: Mechanics A level question

i got it thanks