Speed and Acceleration

Keep in mind that these questions contain simple speed questions, simple acceleration questions, and more complex acceleration questions. Refer to the other side of the sheet if you are lost. Be sure to show all of your work, and write down the formulas you have used.

1.   Colin skateboards down the sidewalk in front of the school, traveling at 24 km/h. How much time would it take him to travel 6.0 km?

2.   If you ran 15 km/h for 20 min, how much distance would you cover?

3.   Marcy doesn't want to be late for class (No . . . never . . . not Marcy) so she rushes to Tim Horton's at lunch. How much time would it take Marcy to walk 2 km to Tim's for an apple fritter if she walked at a rate of 4.5 km/h?

4.   Jeff stays after class to work on is science homework and is late for hockey practice. He decides to run so the coach won't be mad. If the locker room is 300 m from the classroom and Jeff can run a surprising 25 m/s, how long would it take him to get there?

5.   Rob is really bored one Saturday night and goes outside to study the nocturnal habits of mice in the hayfield. He sees a mouse sniffing along at 0.1 m/s. but it hears and starts to scurry for safety. In just 3.7 s it accelerates to 0.9 m/s. Find its acceleration.

6.   A little grade nine kid moves down the hall at 1.2 m/s. When he sees Luke coming, he begins to run. After 3.2 s, he is moving at 3.6 m/s. What is his acceleration?

7.   Instead of doing his work, Cripps throws a textbook at Devine. After just 0.2 s, it is moving at 10.4 m/s. Find its acceleration.

8.   Greenacre is out roaming the halls at 0.3 m/s. Seeing Mr. Atkinson come around the corner, he accelerates at 0.7 m/s² for 8 s. By then, how fast is he moving?

9.  While attempting to stop Devine from throwing his hat out the window, Stewart throws a punch at him. His fist accelerates at 5.7 m/s². After how much time would it be traveling at 1.03 m/s?