![1 out of 4 attempts The position of a car traveling between two stop signs along a straight city block is given by r 9 (43/2) sin(2t/7)] m, where t denotes the time and 0 s s 17.3 s. Compute the displacement of the car between 2.3 and 3.9 s, as well as between 11.0 and 12.6 s. For each of these time intervals, compute the average velocity of the car 94 (varg),- (V avg2 mis m/s](http://img.homeworklib.com/questions/9b8df5c0-71a4-11ea-860a-970b473eaebb.png?x-oss-process=image/resize,w_560)
dynamics position of a car
traveling
Homework Answers
Concept:- find the displacement by finding the positions first and then find the velocity using the displacements,
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dynamics position of a car
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1 out of 4 attempts The position of a car...
1. A 1200kg car traveling at 11.0 m/s runs into a 920kg car traveling in the...
1. A 1200kg car traveling at 11.0 m/s runs into a 920kg car traveling in the same direction at 5.00 m/s. After the collision the 1200kg car has slowed to 8.00 m/s. a) what is the final velocity of the 920kg car? 2. A bullet mass of m=0.0010kg embeds itself in a wooden block with mass M=0.999kg, which then compresses a spring (k=230 N/m) by a distance x=0.050m before coming to rest. The coefficient of kinetic friction between the block...
Question 4 A car is traveling at –3 m/s at the position +10 meters at the...
Question 4 A car is traveling at –3 m/s at the position +10 meters at the time +5 seconds. a. Writethepositionfunctionasafunctionoftimeforthiscar. A second car is traveling at –1 m/s at the position –5 meters at the time +8 seconds. b. Writethepositionfunctionasafunctionoftimeforthiscar. c. Sketch the two functions accurately. Specifically, locate the x and y intercepts. Locate the time and position where the two graphs intersect. d. Calculatethetimeandpositionwherethetwocarsmeet.
U of Wyoming Dynamics, ES 2120-01, Fall 2018 Problem 12.17 Car B is traveling a distance...
U of Wyoming Dynamics, ES 2120-01, Fall 2018 Problem 12.17 Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B Determine the minimum distance d between the cars so as to avoid a collision. at 8 ft/s2 It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes, he decelerates at 16 ft/s2 Figure...
A certain cable car is San Francisco can stop in 10 s when traveling at maximum...
A certain cable car is San Francisco can
stop in 10 s when traveling at maximum speed. On one occasion, the
driver sees a dog a distance d m in front of the car and slams on
the brakes instantly. The car reaches the dog 7.92 s later, and the
dog jumps off the track just in time. If the car travels 3.83 m
beyond the position of the dog before coming to a stop, how far was
the car...
A 1890 kg car traveling at 13.3 m/s collides with a 2970 kg car that is...
A 1890 kg car traveling at 13.3 m/s collides with a 2970 kg car
that is initally at rest at a stoplight. The cars stick together
and move 1.96 m before friction causes them to stop. Determine the
coefficient of kinetic friction between the cars and the road,
assuming that the negative acceleration is constant and all wheels
on both cars lock at the time of impact.
A 1890 kg car traveling at 13.3 m/s collides with a 2970 kg...
A car, traveling due north, has an initial velocity of 18 m/s accelerates for 9 s...
A car, traveling due north, has an initial velocity of 18 m/s accelerates for 9 s for a distance of 180 m. What is the velocity of the car after the acceleration? (5) A remote controlled car is moving through a parking lot described by the position function r(t) = [2.5 m - (0.015 m/s^2) t^2] i - [0.6 m - (0.1 m/s) t + (0.032 m/s2) t^2] j. What is the speed of the toy car at t =...
(m/s) A car is traveling to the right. The equation of velocity of the car is...
(m/s) A car is traveling to the right. The equation of velocity of the car is given as V=25t+21 Show the formulas and How you find your answer. Find the following a) Acceleration of the car. b) Initial velocity c) Equation of the position as a function of time d) What are the position, velocity, and acceleration at 1 =1.0 S. e) What it initial positon of the car? f) At what time velocity of the car is zero? g)...
A 2170 kg car traveling at 12.2 m/s collides with a 2940 kg car that is...
A 2170 kg car traveling at 12.2 m/s collides with a 2940 kg car that is initally at rest at a stoplight. The cars stick together and move 2.02 m before friction causes them to stop. Determine the coefficient of kinetic friction between the cars and the road, assuming that the negative acceleration is constant and all wheels on both cars lock at the time of impact.
1) A railroad car of mass 2,000 kg traveling at a velocity v = 10 m/s...
1) A railroad car of mass 2,000 kg traveling at a velocity v = 10 m/s is stopped at the end of the tracks by a spring-damper system, as shown below. If the stiffness of the spring is k= 40 N/mm and the damping constant c 20 N-s/mm, determine (a) the maximum displacement of the car after engaging the springs and damper, (b) the time taken to reach maximum displacement k2 P 0000 k/2
1) A railroad car of mass...
p mv Ap mv-mv 1. A 1,500 kg car is driving down the road when the...
p mv Ap mv-mv 1. A 1,500 kg car is driving down the road when the brakes are applied. If the car is initially traveling at 12 m/s and slows to a stop after a time of 4 seconds, please determine: a) the change in momentum of the car b) the net force acting on the car. A race car has a mass of 1,000 kg. It accelerates from an initial velocity of 30 m/s to a final velocity of...
U of Wyoming Dynamics, ES 2120-01, Fall 2018 Problem 12.17 Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B Determine the minimum distance d between the cars so as to avoid a collision. at 8 ft/s2 It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes, he decelerates at 16 ft/s2 Figure...
A certain cable car is San Francisco can
stop in 10 s when traveling at maximum speed. On one occasion, the
driver sees a dog a distance d m in front of the car and slams on
the brakes instantly. The car reaches the dog 7.92 s later, and the
dog jumps off the track just in time. If the car travels 3.83 m
beyond the position of the dog before coming to a stop, how far was
the car...
A 1890 kg car traveling at 13.3 m/s collides with a 2970 kg car
that is initally at rest at a stoplight. The cars stick together
and move 1.96 m before friction causes them to stop. Determine the
coefficient of kinetic friction between the cars and the road,
assuming that the negative acceleration is constant and all wheels
on both cars lock at the time of impact.
A 1890 kg car traveling at 13.3 m/s collides with a 2970 kg...
A car, traveling due north, has an initial velocity of 18 m/s accelerates for 9 s for a distance of 180 m. What is the velocity of the car after the acceleration? (5) A remote controlled car is moving through a parking lot described by the position function r(t) = [2.5 m - (0.015 m/s^2) t^2] i - [0.6 m - (0.1 m/s) t + (0.032 m/s2) t^2] j. What is the speed of the toy car at t =...
(m/s) A car is traveling to the right. The equation of velocity of the car is given as V=25t+21 Show the formulas and How you find your answer. Find the following a) Acceleration of the car. b) Initial velocity c) Equation of the position as a function of time d) What are the position, velocity, and acceleration at 1 =1.0 S. e) What it initial positon of the car? f) At what time velocity of the car is zero? g)...
1) A railroad car of mass 2,000 kg traveling at a velocity v = 10 m/s is stopped at the end of the tracks by a spring-damper system, as shown below. If the stiffness of the spring is k= 40 N/mm and the damping constant c 20 N-s/mm, determine (a) the maximum displacement of the car after engaging the springs and damper, (b) the time taken to reach maximum displacement k2 P 0000 k/2
1) A railroad car of mass...
p mv Ap mv-mv 1. A 1,500 kg car is driving down the road when the brakes are applied. If the car is initially traveling at 12 m/s and slows to a stop after a time of 4 seconds, please determine: a) the change in momentum of the car b) the net force acting on the car. A race car has a mass of 1,000 kg. It accelerates from an initial velocity of 30 m/s to a final velocity of...
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