While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s for 12.0 s. (a) Draw a sketch of the situation. (b) List the knowns in this problem. (c) How far does the car travel in those 12.0 s? To solve this part, first identify the unknown, and then discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, check your units, and discuss whether the answer is reasonable. (d) What is the car’s final velocity? Solve for this unknown in the same manner as in part (c), showing all steps explicitly.

While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s for 12.0 s. (a) Draw a sketch of the situation. (b) List the knowns in this problem. (c) How far does the car travel in those 12.0 s? To solve this part, first identify the unknown, and then discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, check your units, and discuss whether the answer is reasonable. (d) What is the car’s final velocity? Solve for this unknown in the same manner as in part (c), showing all steps explicitly.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 9OQ: As an object moves along the x axis, many measurements are made of its position, enough to generate...

See similar textbooks

Similar questions

Colonel John P. Stapp, USAF, participated in studying whether a jet pilot could survive emergency ejection. On March 19, 1954, he rode a rocket-propelled sled that moved down a track at a speed of 632 mi/h (see figure below). He and the sled were safely brought to rest in 1.40 s. (a) Determine in SI units the negative acceleration he experienced. (m/s2) (b) Determine in SI units the distance he traveled during this negative acceleration. (m)
An airplane needs to gain an acceleration of 0.79 m/s2 to take off on a 2000 m runway, what is the velocity ( i.e. final velocity) of the airplane just before it takes off? [Pay attention to the units in answer choices] A. 112 km/h B. 203 km/h C. 786 km/h D. 304 km/h Please explain step by step and the equations used, thank you.
(the complete question is in the picture) Which of the following best describes an instantaneous speed?A. A marathon runner stopping midway to take a break.B. A runner finishing a 1-km runaround an oval track in 30 [s]C. A traveler walking for 30 [min]D. A typhoon going southeast with130 [km/h] wind speed.
Colonel John P. Stapp, USAF, participated in studying whether a jet pilot could survive emergency ejection. On March 19, 1954, he rode a rocketpropelled sled that moved down a track at a speed of 632 mi/h (see Fig. P2.56). He and the sled were safely brought to rest in 1.40 s. Determine in SI units (a) the negative acceleration he experienced and (b) the distance he traveled during this negative acceleration.
The Jamaican bobsled team hit the brakes on their sled so that it decelerates at a uniform rate of 0.43 m/s2. How long does it take to stop if it travels 85 m before coming to rest? Please provide a drawing with the final solution.
A runner with a good awareness of her pace runs along a path of unknown length at a speed of 0.275 mi/min and then walks back to her starting point at a speed of 0.0500 mi/min. She neglects to note her time for each part of her path, but does measure the total round trip time to be 60.0 min. How far did she run? Do not include the walking distance
The height of an object thrown upward with an initial velocity of 96 feet per second is given by the formula h = −16t2 + 96t, where t is the time in seconds. a) How long will it take the object to reach a height of 144 feet? b) How long will it take the object to return to the point of departure?
Compute your average velocity in the following two cases: (a) You walk 64.0 m at a speed of 1.28 m/s and then run 64.0 m at a speed of 3.98 m/s along a straight track. (b) You walk for 1.00 min at a speed of 1.28 m/s and then run for 1.39 min at 3.98 m/s along a straight track.
The polar bear is an excellent swimmer, and it spends a large part of its time in the water. Suppose a polar bear wants to swim from an ice floe to a particular point on the shore. The bear dives into the water and begins swimming. As the bear swims, it tires and slows at a rate of 0.0122 m/s/s. By the time it reaches the shore, which is 40.1 m from where it dove into the water, its velocity is 2.13 m/s. How fast was the bear swimming when it first got into the water? ____________m/s
The polar bear is an excellent swimmer, and it spends a large part of its time in the water.Suppose a polar bear wants to swim from an ice floe to a particular point on the shore. The bear dives into the water and begins swimming. As the bear swims, it tires and slows at a rate of 0.0122 m/s/s. By the time it reaches the shore, which is 40.1 m from where it dove into the water, its velocity is 2.13 m/s.How fast was the bear swimming when it first got into the water?
A race car starts from rest and travels east along a straight and level track. For the first 5.0 s of the car's motion, the eastward component of the car's velocity is given by υx(t)=(0.920m/s^3)t^2 What is the acceleration of the car when υx = 12.8 m/s ? Express your answer with the appropriate units.
A jogger jogs from one end to the other of a straight track in 1.03 min and then back to the starting point in 1.44 min. What is the jogger's average speed at the following points? (Assume the track is 100 m long.) (a) in jogging to the far end of the track m/s (b) coming back to the starting point m/s (c) for the total jog m/s