Question

Can someone check my work? Not sure what I did wrong for this problem on forces. Thank you!

Answer 1

I got an acceleration of 1.15 m/s^2. See the photo.

Answer 2

It is a bit difficult to follow you work because you are mixing litteral and numerical values from the start.

Using the energy method, I find the same value for acceleration as Psi².

\(a=g\dfrac{m_2\sin\theta-\mu_1m_1-\mu_2m_2\cos\theta}{m_1+m_2}\)

Answer 3

Try to solve again after correcting these mistakes.