A car travels a certain distance along a straight road (in the +x direction). The distance the car travels as a function of time is shown in the figure below. When the car changesspeed it does so uniformly. Select the appropriate choice for each statement.The x-acceleration is ..... zero at 38 sec.The x-acceleration is ..... zero at 48 sec .1000The speed is ..... zero at 23 sec.|At 7 sec, the speed is as high as it gets.| The acceleration magnitude at 38 sec is ..... the acceleration magnitude at 15 sec.The speed at 7 sec is ..... the speed at 79 sec.80060040020020406080Time (s)Distance (m)

General equation of distance (s) of the car with time (t) is given by the kinematic equation :…

Answered: A car travels a certain distance along…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.03 s later. (a) What was the car's constant deceleration before impact? m/s2 (b) How fast was the car traveling at impact? m/s
#1
Asmaa' is cycling her bike initially at 5.4 km/h before she decides to accelerate at 0.6 m/s?. i) What will be the time taken to cover 150 m on a straight road leading to her school? ii) What is her speed when she reached her school?
An advertisement for the newest model of a Mercedes sports claims the car can go from 0 to 60 miles per hour (mph) in just 3.3 seconds! a) How many meters per second (m/s) is 60 mph? b) In m/s 2 (sometimes written as m/s/s also, just so you know), what is the supposed acceleration of the sports car? c) Impressed by this claim, Sherry buys one. She hops into her new Mercedes sports car and steps on the gas. She’s an engineer and did the math later on; she discovered that her car’s acceleration is 6.7 m/s2 . i) Is her car’s acceleration faster or slower than the advertisement claims it should be? ii) In seconds, how long did it actually take for Sherry’s car to reach 60 mph
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9. Figure 2 below shows the velocity of a particle as a function of time. (a) Find the acceleration for the five one-second periods and plot the acceleration as a function of time. (b) Taking x = 0 at t = 0, find the position of the particle at t 0.5 s, t = 1.0 s, t = 2.0 s,t 3.0 s, t = 4.0 s, and t = 5.0 s and plot the position as a function of time. Look at the slopes of your x vs t curve for the five one-second periods and show that they correspond to the velocities of Fig. 2. m/5) 15.0 10.0 5.0 0.50 100 1.50 2.00 230 3.00 350 4.50 3.00 -5.0 -10.0 F1g 2 -15.0
9. Figure 2 below shows the velocity of a particle as a function of time. (a) Find the acceleration for the five one-second periods and plot the acceleration as a function of time. (b) Taking x = 0 at t = 0, find the position of the particle at t 0.5 s, t = 1.0 s, t = 2.0 s, t = 3.0 s, t = 4.0 s, and t 5.0 s and plot the position as a function of time. Look at the slopes of your x vs t curve for the five one-second periods and show that they correspond to the velocities of Fig. 2. 15.0- 10.0 5.0 0.50 1.00 1.50 2.00 2.30 S.00 350 4.50 3.00 -5.0t -ם.םו- Fig 2 -15.0
a) A car moving with a constant velocity travels 360 meters in 9 seconds. What was the average velocity of the car in m/s? b) A second car starts from rest, speeds up with constant acceleration, and travels 360 meters in 9 seconds. What was the average velocity of the second car in m/s? c) What was the final velocity of the second car (in m/s)?
A honda civic is driven at 20 m/s for 12 mins, then 40 m/s for 20 min, and finally at 50 m/s for 8 min. a.) calculate the average speed over the interval. b.) How fast must the honda civic move in the last 8 mins of travel to obtain an average spee of 55 m/s?
a car travels on a straight, level road. a) Starting from rest, the car is going 42 ft/s (29 mi/h) at the end of 4.5 s. What is the car's average acceleration in ft/s2? b) In 3.5 more seconds, the car is going 84 ft/s (57 mi/h). What is the car's average acceleration for this time period? (c) The car then slows to 63 ft/s (43 mi/h) in 2.5 s. What is the average acceleration for this time period? (d) What is the overall average acceleration for the total time?
Answer the following question and choose the correct answer. Show the solutions

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