5. GO The data in the following table describe the initial and final posi- tions of a moving car. The elapsed time for each of the three pairs of po-- sitions listed in the table is 0.50 s. Review the concept of average velocity in Section 2.2 and then determine the average velocity (magnitude and direction) for each of the three pairs. Note that the algebraic sign of your answers will convey the direction. (a) (b) (c) Initial position xo Final position x +2.0 m +6.0 m +6.0 m +2.0 m -3.0 m +7.0 m

5. GO The data in the following table describe the initial and final posi- tions of a moving car. The elapsed time for each of the three pairs of po-- sitions listed in the table is 0.50 s. Review the concept of average velocity in Section 2.2 and then determine the average velocity (magnitude and direction) for each of the three pairs. Note that the algebraic sign of your answers will convey the direction. (a) (b) (c) Initial position xo Final position x +2.0 m +6.0 m +6.0 m +2.0 m -3.0 m +7.0 m

Name: Physics Question #5 is attached image 5. GO The data in the following
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: Physics Question #5 is attached image 5. GO The data in the following table describe the initial and final posi-tions of a moving car. The elapsed time for each of the three pairs of po-sitions listed in the table is 0.50 s. Review the concept of ave

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 30CQ: Consider the velocity vs. time graph of a person in an elevator shown in Figure 2.58. Suppose the...

See similar textbooks

Similar questions

In World War II, there were several reported cases of airmen who jumped from their flaming airplanes with no parachute to escape certain death. Some fell about 20,000 feet (6000 m), and some of them survived, with few life-threatening injuries. For these lucky pilots, the tree branches and snow drifts on the ground allowed their deceleration to be relatively small. If we assume that a pilot's speed upon impact was 123 mph (54 m/s), then what was his deceleration? Assume that the trees and snow stopped him over a distance of 3.0 m.
Do highway speed limit signs refer to average speeds or to instantaneous speeds? Explain.
Consider the velocity vs. time graph of a person in an elevator shown in Figure 2.58. Suppose the elevator is initially at rest. It then accelerates for 3 seconds, maintains that velocity for 15 seconds, then decelerates for 5 seconds until it stops. The acceleration for the entire trip is not constant so we cannot use the equations of motion from Motion Equations for Constant Acceleration in One Dimension for the complete trip. (We could, however, use them in the three individual sections where acceleration is a constant.) Sketch graphs of (a) position vs. time and (b) acceleration vs. time for this trip.
Bacteria move back and f01th by using their flagella (Structures that look like little tails). Speeds of up to 50m/s(50106m/s) have been observed. The total distance traveled by a bacterium is large for its size, while its displacement is small. Why is this?
A person lakes a trip, driving with a constant speed of 89.5 km/h, except, for a 22.0-min rest stop. If the persons average speed is 77.8 km/h, (a) how much time is spent on the trip and (b) how far does the person travel?
A dolphin in an aquatic show jumps straight up out of the water at a velocity of 13.0 m/s. (a) List the knowns in this problem. (b) How high does his body rise above the water? To solve this part, first note that the final velocity is now a known and identify its value. Then identity the unknown, and discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, checking units, and discuss whether the answer is reasonable. (c) How long is the dolphin in the air? Neglect any effects due to his size or orientation.
What is the speed of the bird in Exercise 2.4?
A dolphin in an aquatic show jumps straight up out of thewater at a velocity of 13.0 m/s. (a) List the knowns in thisproblem. (b) How high does his body rise above the water?To solve this part, first note that the final velocity is now aknown and identify its value. Then identify the unknown, anddiscuss how you chose the appropriate equation to solve forit. After choosing the equation, show your steps in solving forthe unknown, checking units, and discuss whether the answeris reasonable. (c) How long is the dolphin in the air? Neglectany effects due to his size or orientation
. A body has an initial velocity of 45km/h and is accelerated uniformly at2m/s2 until its velocity is 72km/h after which is brought to a rest with auniform retardation, if the total remaining time is 12 seconds;i. Sketch the velocity-time graphii. Show that, the total distance covered can be determined
6.The velocity in ft/s of an object moving along a line is givenby v = ƒ(t) on the interval 0 ≤ t ≤ 10, where t ismeasured in seconds.a. Divide the interval [0, 10] into n = 5 subintervals. On eachsubinterval, assume the object moves at a constant velocityequal to the value of v evaluated at the left endpoint of thesubinterval, and use these approximations to estimate thedisplacement of the object on [0, 10].b. Repeat part (a) using the right endpoints to estimate thedisplacement on [0, 10].c. Repeat part (a) using the midpoints of each subinterval toestimate the displacement on [0, 10].
2. Wellington Wildcat is rushing to get to a parade in time to be the grand marshal. He’s standing in theback of a flatbed truck while McFogg the Dog races at 25 m/s towards town. Suddenly, McFogg sees atiny maple leaf in the road 55 m ahead, and, being a proud Canadian, slams on the brakes to protect thesacred totem. Since McFogg is known to ride the brakes like a real jerk, let’s assume his reaction time tohit the breaks is essentially zero.A. Can McFogg actually stop before the truck reaches the leaf? The coefficients of friction betweenrubber tires and dry concrete are: μs = 1.00, μk = 0.80. When answering this question, be sure toinclude a free-body diagram representing the truck and its stellar mascots as a single object.B. Now here’s the real serious question: Is it possible for McFogg to stop short of the leaf such thatWellington does not slip and slide into the back of the truck cab? The coefficients of friction forWellington’s shoes on the bed of the truck are: μs = 0.60, μk…
For the case of freefall, explain how to calculate the total distance traveled and the instantaneous velocity for an object that is dropped from rest by applying the fundamental meaning of acceleration and by using the two equations: Vavg=(vf+vi)/2 and d=vavg*t. Is this method applicable only for the case of freefall and with an initial velocity of zero, or is it always applicable to cases where the acceleration of an object is constant and parallel, or antiparallel, to the direction of motion? Explain.