40 30 20 B 10 C A E 6 time (s) As part of a physics lab. John graph's a car's position vs. time graph as seen above. What is the instantaneous velocity John determines the car is traveling at t = 5.5s? A. +20 m/s B. +10 m/s C. -40 m/s D. -8 m/s Е. -6 m/s position (m)

40 30 20 B 10 C A E 6 time (s) As part of a physics lab. John graph's a car's position vs. time graph as seen above. What is the instantaneous velocity John determines the car is traveling at t = 5.5s? A. +20 m/s B. +10 m/s C. -40 m/s D. -8 m/s Е. -6 m/s position (m)

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)...

See similar textbooks

Related questions

Q: A rider on horseback moves according to the velocity vs. time graph shown. Find the displacement of…

Q: 1. A ball is dropped from rest from a height of 3m above the ground. a. What is the speed of the…

Q: ball is thrown vertically from the ground with a velocity of 30 m/s. a. What time is required for…

A: We know that the first equation of motion is given as v=u+at where v is the final velocity u is…

Q: E2. A walker covers a distance of 1.4 km in a time of 30 minutes. What is the average speed of the…

A: Given value--- distance = 1.4 km. time = 30 min. We have to find--- speed in km/h ? convert speed…

Q: 4. Your teacher's car can go from rest to 25 m/s (60mph) in 10 seconds. The car's velocity changes…

A: The car's initial velocity is, u=0 The car's final velocity is, v=25 m/s The time interval is, t=10…

Q: A car starting from rest has a constant acceleration of 4 meters per second per second. How fast…

Q: UESTION 23 Velocity vs. Time : B 25 20 15 10 6. 8. 10 O Time (seconds) > Choose the best option…

A: Correct answer:- The object's acceleration is zero

Q: An object moves in one dimension, according to the position versus time graph. Express your answers…

Q: car is traveling at a constant velocity of 60 km/h for 4 hours. Choose the correct statement about…

Q: While munching on its acorn under an oak tree. The chipmunk noticed a dog charging at him. The…

A: Let a1 denote the acceleration of the chipmunk, t1 denote the time, and v denote the velocity after…

Q: A subway train starts from rest at a station and accelerates at 3 m/s2 for 10 seconds. It then runs…

A: Given data: Initial velocity (u) = 0 m/s Acceleration (a) = 3 m/s2 for 10 s Constant Speed for 90…

Q: You are driving your car at a constant speed of 22 m/s. If your average speed including a 32 minutes…

Q: s to slow down, reaching a complete stop after slowing down for 1.52 s. What was the sled s average…

A: GivenInitial speed of rocket-powered sled toward west, u=256 m/sRocket-powered sled slowing down…

Q: A car, initially moving at 1m/s, has a constant acceleration of 2m/s. After 10 seconds, what will…

A: Since there are more than one question I am answering the first question only according to the…

Q: If a man ran @ 3m/s for 10s and then -3m/s for 10s more.... A.What is the distance traveled? B.…

A: Concept Scalar and vector quantities. Scalar quatities are independent of direction whereas the…

Q: 1. A bicyclist pedals at a speed of 5.0 m/s. How far does he travel in 2000 seconds?

Q: A car decelerates at 2.0 m/s 2 and comes to a stop after travelling 25 m. Find the time required to…

Q: Given that a runner can run and maintain a constant speed of 5 m/sec, he will cover 5 meters every…

A: speed of runner v= 5 m/sec

Q: 12. A runner has an average speed of 4 m/s during a race. How far does the runner travel in 20…

A: Given Average speed v= 4m/a Time t= 20 min

Q: A car travels 105 m with constant deceleration of 2.4 m/s2 in 3 seconds. What is the initial…

A: Given data: Here, S represents the distance, t represents the time, and a represents the…

Q: 3. Irina dives from a 25-meter high platform into a water (see diagram ). 25 m a. Irina's…

A: Given Height of platform (H) = 25 m , initial velocity , vo= 0 (a) Irina's acceleration as she…

Q: which of the following speeds is the fastest? a. 4.2 ' 10^-2 km/s b. 1.4 ' 10^2 km/s c. 4.0 '…

Q: acceleration, a, causing it to start moving. It reaches its final velocity, v, after accelerating…

Concept explainers

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.

Question

100%

D
40
30
20
B
10
C
A
E
4
time (s)
As part of a physics lab. John graph's a car's position vs. time graph as seen above. What is the
instantaneous velocity John determines the car is traveling at t = 5.5s?
A. +20 m/s
B. +10 m/s
С. -40 m/s
D. -8 m/s
E. -6 m/s
position (m)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

The velocity vs. time graph for an object in motion is shown below. What is the total distance traveled by the object? velocity vs time 2.5 2 1.5 1 0.5 1 2 4 5 -0.5 -1 -1.5 time (s) 16 m 4 m 8 m 2 m 3. velocity (m/s) O O O
1. Rushin is waiting at a stoplight. When it finally turns green, Rushin accelerated from rest at a rate of a 2.00 m/s² for a time of 15 seconds. Determine the velocity of Rushin's car during this time period. -30 m/s? с. 7.5 m/s a. b. 30 m/s? d. 30 m/s 2. Ima is approaching a stoplight moving with a velocity of +30.0 m/s. The light turns yellow, and Ima applies the brakes and skids to a stop. If Ima has an acceleration rate of 8.00 m/s², determine the displacement of the car during the skidding process. 56.3 m cannot determine a. с. b. 240 m d. 4.3 m 3. A car slows down uniformly from a speed of 21.0 m/s to rest in 6.00 seconds. What was its average velocity? How far did it travel in that time? 10.5 m/s; 0.29 m 10.5 m/s; 63 m b. 21.0 m/s ;126 m a. с. d. cannot determine
A motorist starts from rest and traveled as seen in the speed-time graph. The total distance traveled and the average velocity in m/s for the distance traveled is 1.5 3.0 4.5 6.0 7.5 Time in minutes Select one: O a. 7.5 km, 4.5 m/s b. 10 km, 1.5 m/s c. 4.5 km, 10 m/s Reply... Speed in km/h :
A car is going 29.0 m/s when it begins to slow and comes to a stop in 100 meters. What was the acceleration of the car? a. -3.05 m/s² -4.21 m/s² O b. C. d. -5.01 m/s² *3.05 m/s² e. 4.21 m/s²
6. A futsal player leaves the bench and runs 5.0 m [N] and then 4.0 m [W] where she stops after 9 seconds. Gi a. what is the total distance traveled b. what is the displacement of the player c. what is her average speed d. what is her average velocity
An automobile with an initial speed of 20 m/s accelerates at a rate of 5 m/s2. Use one of your kinematic equations and find how fast the car is moving after accelerating for 3 seconds. a. 15 m/s. b. 225.5 m/s. c. 35 m/s. d. 400 m/s.
Speed (km/h) Time (s) 0.0 0 10 20 30 40 50 60 70 80 12. The Tesla Model S-Can accelerate to high speeds very quickly. The table below shows test data for the Tesla Model S as it travels along a straight line. a. Sketch a velocity vs time graph for this car. 90 100 110 120 b. C. 0.2 0.4 0.6 0.9 1.2 1.6 2.0 2.4 2.9 3.5 4.1 4.8 140 120 iii. iv. 100 80 60 How is the acceleration of this car best described? Zero? Constant but not zero? Increasing? Decreasing? Something else? Explain how you can tell. + What is the car's average acceleration in m/s² for the following times: i. ii. Osto 0.9 s 0.9 to 2.0 s 2.0 to 2.9 s 2.9 to 4.1 s v. 0 to 4.1 s Approximately how far has the Model S travelled once it reaches 120 km/h?
Hicham El Guerrouj of Morocco holds the world record in the 1500 m running race. He ran the final 400 m in a time of 51.9 s. What was his average speed in mph over the last 400 m?A. 14.2 mph B. 15.5 mphC. 17.2 mph D. 23.9 mph
5. Draw a distance vs. time graph for Melinda’s journey. Her home is located at 0 meters.Melinda is riding her bike over to her friend Sara’s house to complete an assignment. Her friend lives 5 km away. She accelerates away from her home for250 m in the next 2.5 minutes. She then rides at a constant speed of 300 m/min for 15 minutes. Melinda sees Sara’s house approaching so she slows downuntil she reaches her destination in the next 2.5 minutes. She stays at Sara’s house for 30 minutes while they work on the assignment. It is time to go home,Melinda rides home at a steady speed of 250 m/min for 10 minutes. Melinda is getting tired so she slows down for 250 m during the next 5 minutes thenstops for 2.5 minutes to have a drink. Realizing it’s getting late, she had to speed up 1 km in the next 5 minutes then rides at a constant speed of 300 m/minfor 2.5 minutes. Almost home, she decelerates for the next 10 minutes until she reaches her house.
Help me please
4. In velocity versus time graph, what does the slope of the line between two points represents: a. The average velocity. b. The average speed. c. The average acceleration. d. The instantaneous velocity. e. The instantaneous velocity. Explain your reasoning:
4. What was the initial velocity of an object that moved 100 m in 5.60 s reaching a final velocity of 15.0 m/s in that time? Was the object speeding up or slowing down? 5. A car traveling at 40 km/h accelerates at 2.3 m/s² for 2.7 s. How far has it traveled in that time? What is its final velocity?