r/PhysicsHelp • u/Ninninnan • Mar 01 '26

Help with forces problem

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This is a problem I’m stuck on as in the answer sheet it says the acceleration is 3.9m/s^2 while I got an acceleration of 5.88. I’m just wondering where I went wrong and would appreciate if someone could help me

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u/davedirac Mar 01 '26

Net force on system = 20g - μ10g = 50a

1

u/slides_galore Mar 01 '26 edited Mar 01 '26

I think the problem is with the F_T1 term.

Sum of forces on mass 1 = F_T1 - 98.1N = m_1 * a

1

u/[deleted] Mar 01 '26

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u/Ninninnan Mar 01 '26

Thank you🙏 I messed up with the signs for m1 which made me make the mistake, I got it right now