2. A Hyundai Santa Fe travels a 1.30km levelled road fromBonifacio roundabout to City Lights Hotel in a minimum time of45.60seconds. Given that the car accelerates and deceleratesat 2.53 m/s², which starts from rest at the roundabout andcoming to a stop at the Hotel, determine the maximum speed (inkph) and the time (in seconds) it travel at this speed. Assumetime for acceleration and deceleration are equal.

Speed is the time rate at that a car is moving along a direction, while velocity is the rate and…

Answered: A Hyundai Santa Fe travels a 1.30km…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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4. A car comes to a complete stop from an initial speed of 50 mi/hr in a distance of 100 ft. With the same constant acceleration, what would be the stopping distance s from an initial speed of 70 mi/hr?
The reaction time of the average automobile driver is about 0.7sec. The reaction time is the interval between the perception of a signal to stop and the application of the brakes. If an automobile can decelerate at 4.5 m/sec?, compute the total distance covered in coming to stop after a signal is observed from an initial velocity of 48kph.
An automobile is traveling on a curve having a radius of 800 ft. If the acceleration of the automobile is 6 ft/s², determine the constant speed at which the automobile is traveling.
Car A is traveling at a constant speed vA = 132 km/h at a location where the speed limit is 100 km/h. The police officer in car Pobserves this speed via radar. At the moment when A passes P, the police car begins to accelerate at the constant rate of 4.1 m/s² until a speed of 169 km/h is achieved, and that speed is then maintained. Determine the distance s required for the police officer to overtake car A. Neglect any nonrectilinear motion of P. VA Answer:s= m
Car A is traveling at a location where the speed limit is 100 km/h. The police officer in car P observes this speed via radar. The driver of car A is traveling at vÃ = 122 km/h as it passes P, but over the next 4.1 seconds, the car uniformly decelerates to the speed limit of 100 km/h, and after that the speed limit is maintained. At the moment when A passes P, the police car begins to accelerate at the constant rate of 4.0 m/s² until a speed of 164 km/h is achieved, and that speed is then maintained. Determine the distance s required for the police officer to overtake car A. Answer: s= i VA 248.52 P m
A car is traveling around a circular track of 660-ft radius. If the magnitude of its total acceleration is 6.2 ft/sec² at the instant when its speed is 32 mi/hr, determine the rate at at which the car is changing its speed. Answer: at = ± ft/sec²
In traveling a distance of 2.0 km between points A and D, a car is driven at 106 km/h from A to B for t seconds and 47 km/h from C to D also for t seconds. If the brakes are applied for 3.7 seconds between B and C to give the car a uniform deceleration, calculate t and the distance s between A and B.
A Car rounds a 100-m radius curve at a constant speed of 60 kph. Which of the following statements is/are TRUE considering its motion on the curve path? Select ALL possible answers. O The car has a tangential acceleration. The car has a normal acceleration directed towards the center of the curved path. O The car has a normal acceleration directed away from the center of the curved path. The car has no tangential acceleration. The velocity of the car changes at any instant. O none of these
Assume you are observing traffic in a single lane of a highway at a specific location. You measure the average headway and average spacing of passing vehicles as 3.2 seconds and 20 m, respectively. Calculate the flow, average speed, and density of the traffic stream in this lane.
A golf ball is launched with the initial conditions shown in the figure. Determine the radius of curvature of the trajectory and the time rate of change of the speed of the ball (a) just after launch and (b) at apex. Neglect aerodynamic drag. 178 mi/hr 16° (b) At the apex, determine the speed v of the ball, the total acceleration a of the ball, the normal component of acceleration a, and the tangential component of acceleration a. Answers: V= ft/sec i ft/sec? ft/sec? ft/sec?

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