Two blocks are attached by a thin inextensi-

Question

ble string over a frictionless, massless pulley.
There is a frictional force between the block
on the incline and the incline.
The acceleration of gravity is 9.8 m/s2 .
13 kg
13 kg
μ
T
1.1 m/s
0 m/s2
39◦
Calculate the magnitude of the frictional
force acting on the block on the incline.
Answer in units of N.