EBK UNDERSTANDING OUR UNIVERSE (THIRD E
3rd Edition
ISBN: 9780393631760
Author: Blumenthal
Publisher: VST
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Chapter 1, Problem 17QAP
To determine
The motion of the car.
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Chapter 1 Solutions
EBK UNDERSTANDING OUR UNIVERSE (THIRD E
Ch. 1.1 - Prob. 1.1CYUCh. 1.2 - Prob. 1.2CYUCh. 1.3 - Prob. 1.3CYUCh. 1 - Prob. 1QAPCh. 1 - Prob. 2QAPCh. 1 - Prob. 3QAPCh. 1 - Prob. 4QAPCh. 1 - Prob. 5QAPCh. 1 - Prob. 6QAPCh. 1 - Prob. 7QAP
Ch. 1 - Prob. 8QAPCh. 1 - Prob. 9QAPCh. 1 - Prob. 10QAPCh. 1 - Prob. 11QAPCh. 1 - Prob. 12QAPCh. 1 - Prob. 13QAPCh. 1 - Prob. 14QAPCh. 1 - Prob. 15QAPCh. 1 - Prob. 16QAPCh. 1 - Prob. 17QAPCh. 1 - Prob. 18QAPCh. 1 - Prob. 19QAPCh. 1 - Prob. 20QAPCh. 1 - Prob. 21QAPCh. 1 - Prob. 22QAPCh. 1 - Prob. 23QAPCh. 1 - Prob. 24QAPCh. 1 - Prob. 25QAPCh. 1 - Prob. 26QAPCh. 1 - Prob. 27QAPCh. 1 - Prob. 28QAPCh. 1 - Prob. 29QAPCh. 1 - Prob. 30QAPCh. 1 - Prob. 31QAPCh. 1 - Prob. 32QAPCh. 1 - Prob. 34QAPCh. 1 - Prob. 35QAPCh. 1 - Prob. 36QAPCh. 1 - Prob. 37QAPCh. 1 - Prob. 38QAPCh. 1 - Prob. 39QAPCh. 1 - Prob. 40QAPCh. 1 - Prob. 41QAPCh. 1 - Prob. 42QAPCh. 1 - Prob. 43QAPCh. 1 - Prob. 44QAPCh. 1 - Prob. 45QAP
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- George walks to a friend’s house. He walks 750 meters North, then realizes he walked too far. He turns around and walks 250 meters South. The entire walk takes him 13 seconds. What is his speed per second?arrow_forwardA burst water pipe in the city means you have to drive at a steady 12 km/h. Once past this obstacle, you speed up to 52 km/h in 10 s. You reach the freeway and, with the same acceleration, speed up for another 10 s to reach a higher speed. What is this final speed in km/h to one decimal place?arrow_forwardsketch what you think the speed time graph would look like for a vehicle that begins at 10 m/hr. and remains at that speed for 10 minutes. Label this section A. Then the vehicle (over a five-minute interval) increases speed from 10 to 20 m/hr. Label this section B. Then immediately the vehicle begins to slow down. It takes the vehicle 10 minutes to slow down from 20 m/hr. to zero. Label this section C. This graph would have 3 intervals. The first interval (A) is from 0 to 10 minutes. The second interval (B) is from 10 minutes to 15 minutes. The third interval (C) is from 15 minutes to 25 minutes. The x-axis needs to go from zero to 25 minutes. The y axis needs to go from zero to 20 m/hr. Describe the motion of the vehicle in each interval as increasing, decreasing, constant, or at rest.arrow_forward
- A car starts from rest and accelerates at a rate of 6 m/s2 for 20 seconds. It then maintains a constant speed for 10 seconds before deceleration at a rate of 2 m/s2. If the total distance traveled by the car is 1500 meters, what is the maximum speed reached by the car?arrow_forwardJulie drives 91 mi to Grandmother's house. On the way to Grandmother's house, Julie drives half the distance at 36 mph and half the distance at 56 mph. On her return trip, she drives half the time at 36 mph and half the time at 56 mph. What is Julie's average speed on the way to Grandmother's house?arrow_forwardSketch position VS. time graph. Include numerical scales along both axes. Trucker Bob starts the day 120 miles from a certain place in West. He drives East for 3 hours at a steady 60 miles/hour before stopping for his coffee break. Let certain places located at x=0 mi and assume that the x-axis points to the East.arrow_forward
- A car initially traveling at 50 m/s slows down at -10 m/s² for 4 seconds. How far (in meter) does it travel during the 4 seconds?arrow_forwardAn automobile is driven at 30 mph for 12 min, then at 40 mph for 20 min, and finally 50 mph for8min. What is the average speed over this interval? How fast must the automobile move in the last 8 min to obtain an average speed of 35 mph?arrow_forwardGeorge walks to a friend’s house. He walks 750 meters North, then realizes he walked too far. He turns around and walks 250 meters South. The entire walk takes him 13 seconds. What is his velocity in meters per second? Also, is the acceleration due to gravity negative or positive or it depends? I'm really confused. Please help and explain in an easy to understand.arrow_forward
- Bill and Amy want to ride their bikes from their neighborhood to school which is 21.3 kilometers away. It takes Amy 38 minutes to arrive at school. Bill arrives 23 minutes after Amy. (Add Amy's time with 23 min to get Bill's time.) How much faster (in meters/second) is Amy’s average speed for the entire trip? m/s (Convert km to m and min to sec)arrow_forwardShane Zaragosa was driving a vehicle in Davao where he got distracted by a group of cute students of San Pedro College until he noticed the stoplight just about 45 feet ahead. How much deceleration should he need in feet per second per second if he is at a velocity of 60 mph and he needs to stop at the stoplight?arrow_forwardA student set out to measure the average acceleration between two measurements. He pushed a car through the first photogate and measured its speed to be 5.56 m/s. After the car traveled through an additional 1.18 m, it passed through the second photogate with a speed of 5.45 m/s. What is the acceleration between these two measurements in m/s2?arrow_forward
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