- #1
PhysicsNoob76
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Homework Statement
A 2.5 kg mass is attached to a 3.5 kg mass by a light string that passes over a friction-less pulley. The masses are released.
a) What is the magnitude of the acceleration of the masses?
b) What is the tension in the string?
Homework Equations
(I think) Ft - mg = ma
The Attempt at a Solution
I drew 2 free body diagrams for both the weights and they both have Fg and Ft on the y.
On this 6th line, starting with (2.5)(a)... I made it so that Ft2 = Ft2
My answer was suppose to be 6.54 m/s in the work I showed because the acceleration of the bigger weight will accelerate negatively. So ignore the minus sign for my answer to a =
I think I've done the best I could, but my answer is still wrong, not sure why.
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