Question

draw particle model diagrams with vectors to represent the indicated motion. a person speeding up a person slowing down

Explanation:

For a person speeding up, draw a particle (a dot to represent the person). Draw velocity vectors in the direction of motion, with each successive vector longer than the previous one to show increasing speed. For a person slowing down, draw a particle. Draw velocity vectors in the direction of motion, with each successive vector shorter than the previous one to show decreasing speed.

Answer:

For "A person speeding up": Draw a dot. Draw a series of arrows in the same direction starting from the dot, with arrow - lengths increasing.
For "A person slowing down": Draw a dot. Draw a series of arrows in the same direction starting from the dot, with arrow - lengths decreasing.