Astring wraps around a wheel with mass mw = 6.5 kgand radius r = 0.15 m . the wheel is mounted on a frictionless horizontal axle at the top of an inclined plane tilted at the angle θ = 37∘ below the horizontal. the free end of the string is attached to a block with mass of mb = 3.0 kg that slides down the incline without friction. the block's acceleration while sliding down the incline is a = 3.0 m/s2 .

draw a force diagram for the block. use x-axis parallel to the inclined surface with the positive direction pointing downhill, and the y-axis perpendicular to the inclined surface with the positive direction pointing upward.