5. A speed boat is cruising in the ocean. It has an upward force (buoyant force) of 5000N acting on it, a weight of 5000N, and a force of 20,000N coming from its engine. If the boat is
accelerating forward, what must be the fluid friction on the boat caused by water, if the net
force on the boat is 4000N to the right?
b. Draw a free-body diagram showing the boat in the water.

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

answer; how far out of place which the object finished relative to the starting location;

at right angles to each other