On the diagram draw and label arrows that represent the forces acting on the block.

Calculate the magnitude of the friction force acting on the block.

(normal) reaction/N/R and weight/force of gravity/gravity force/gravitational force/mg/w/W with correct directions;
friction/frictional force/F/F_f with arrow pointing down ramp along surface of ramp;
Do not allow “gravity” as label. Do not allow “drag” as label for friction.

recognize that friction=T-W sin θ;
W sin θ=3.1×10³N;
friction=1.1×10³N;