A car travels at a constant speed of 15 m/s for 2 minutes. The car increases its speed from 15 to 25 mls during the next minute and then travels at a constant speed of 25 m/s
for 2 more minutes. Which of the following graphs best represents the car's motion
during this 5-minute period?

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?