Two masses are connected by a light string running over a light pulley of negligible friction. One mass(m1=3kg) is on a frictionless 20° inclined plane and the other (m2=1kg) is freely suspended. What is the acceleration of the masses?

1 Answer
Jul 11, 2015

I found an acceleration of #0.06m/s^2# so that the block of mass m1 slides down and the block m2 rises up.


Have a look:
enter image source here
the minus sign tells me that the direction of the acceleration is opposite to my choice of #x# positive (#x pos# in the diagram).
I also supposed the string inextensible and with no mass.