Final answer:
The question involves drawing vectors to represent forces in a Physics diagram. An arrow for 10.5 N points down the slope, and 833 N points straight down based on the convention of right as positive and a scale of 1 cm representing 10 N.
Step-by-step explanation:
The question involves understanding how to draw vectors to represent forces acting on an object, which is a fundamental concept in Physics, specifically in the study of dynamics.
Given the existing diagram with forces, the arrow for a force of magnitude 10.5 N pointing down the slope would point downward at an angle, assuming the slope is neither vertical nor horizontal. The force of 833 N, representing the force due to gravity (weight), would be pointed straight down. Since we're defining the right direction as positive, and the scale as '1 cm 10 N', you should draw arrows accordingly.
For the 10.5 N vector, it should be a 1.05 cm long arrow down the slope. The 833 N force would be an 83.3 cm long arrow straight down, if we were to draw it to scale, but since this is impractical on regular paper, it can be represented by a suitably long arrow, or it can be drawn off-scale with a note indicating its actual magnitude.
Remember to always represent vector magnitudes accurately on your graph, if space allows, and to label each force with its magnitude and direction for clarity.