1. A race car driver pulls onto a circular track. After 10 seconds, his speed is 200 km/h. The car travels at a steady speed of 200 km/h for 100 seconds and then slows to a stop
in another 10 seconds. At what times, during that 120-second time period, did the car
change velocity? Explain your answer.

Which of the statements below describe the guidelines for the use of text in presentation programs? a. do not use numbered lists. b. fonts should be appropriate for your audience. c. limit the number of fonts you use to three or four. d. only use bulleted lists for sales promotions. e. select font sizes that are appropriate for your delivery method. f. use font colors that work well with your background. select all that apply