Practice Problems
Practice Problems
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1. A person covers a distance of 320 miles in a travel time of 8 hours.  What is the speed for this trip?   ans0201 (32.0K)

2. A car travels with an average speed of 55 miles/hr.  What is this speed in

1. km/hr?
2. km/s?
3. m/s?   ans0202 (38.0K)

3. The velocity of a car moving in a straight line increases from 8 m/s to 22 m/s in 7 seconds. What is the average acceleration of the car during this period?   ans0203 (41.0K)

4. Starting from rest and moving in a straight line, a runner achieves a speed of 7.0 m /s in a time of 4.5 seconds.  Determine the average acceleration of the runner.   ans0204 (41.0K)

5. The velocity of a car decreases from 25 m/ s to 12 m / s in a time of 4.2 seconds.  What is the average acceleration of the car?   ans0205 (40.0K)

6. A car initially at rest accelerates at the constant rate of 2.0 m / s2 for a time of 5.0 seconds. Determine:

1. the velocity of the car after 5.0 seconds.
2. the distance the car traveled during this process.   ans0206 (38.0K)

7. The position of an object with respect to time was measured and recorded with the following results:

 Distance (meters) Time (seconds) 0 0 5 10 10 20 15 30 20 40 25 50

Graph the distance versus time.   ans0207 (47.0K)

8. For the graph produced in problem 7, calculate the velocity.   ans0208 (33.0K)

9. For the graph of velocity versus time shown below, calculate the acceleration.   ans0209 (43.0K)

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::practice probs image 1::/sites/dl/free/0072509775/80669/image002.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif">practice probs image 1 (13.0K)</a>practice probs image 1

10.   Does the velocity in problem 9 increase or decrease with time?   ans0210 (30.0K)