Connected bodies q

Hi im not sure where ive gone wrong in this question. Can someone help me please? Ty

(edited 2 years ago)

Original post by akawesome

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Hi im stuck with this question and im not sure where ive gone wrong. Please help ty

You’ve rearranged the second simultaneous equation wrong, it should be -T-0.8a=-0.8g and from them it’s easy to solve

OP

Original post by danishh0007

You’ve rearranged the second simultaneous equation wrong, it should be -T-0.8a=-0.8g and from them it’s easy to solve

Tyyy i tried that but its still wrong 😞

(edited 2 years ago)

Original post by akawesome

Tyyy i tried that but its still wrong 😞

If you have one equation starting with 'T' and another starting with '-T' then you should be adding them together to eliminate T :smile:

:smile:

Original post by akawesome

Tyyy i tried that but its still wrong 😞

have you got 2 threads going for the same question? Please stick to one :smile:

:smile:

OP

Original post by davros

have you got 2 threads going for the same question? Please stick to one :smile:

:smile:

Sorryyyy the person that was initially replying stopped helping me so i made another thread

Original post by akawesome

Tyyy i tried that but its still wrong 😞

You’re messing up in combining the simultaneous equations again and when you have 1 equation with +ve variable and another equation with -ve variabel you add them and in your sphere equation you have 2g’s the equation 0.8g-T=0.8a

Block: T-6.86=2a
Sphere 0.8g-T=0.8a

Add the equation 0.8g-6.86=2.8a
a=0.35

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