The diagram shows a block and pulley
system where all the surfaces are
frictionless, and all the pulleys are
massless and frictionless.
Once all Blocks have been let go, what is the ratio of the magnitude of the acceleration, a1, of block 1
to the magnitude of the acceleration of Block 3, a3. That is, what is the ratio a1/a3 ?
The Attempt at a Solution
The answer is 2 but I get -2.
On block one FBD
m1 * a1 = T
a=T/m1 = T
FBD on block 3
-T=m3 * a3
a1/a3 = -2
Any help would be awesome