3. A car with a speed of 61.2 kph [17.00 m/s] is travelling on a straight highway. The driver suddenly applies the brakes right before entering the quarter circular section (radius = 750 m) of the highway at A. It causes the car to slow down at a constant rate. Ten seconds after the car enters the quarter circle section, its speed reduces to 46.8 kph [13.00 m/s]. Which of the following best approximates the total distance travelled by the car after 10 seconds? V. 17.00 m/s

3. A car with a speed of 61.2 kph [17.00 m/s] is travelling on a straight highway. The driver suddenly applies the brakes right before entering the quarter circular section (radius = 750 m) of the highway at A. It causes the car to slow down at a constant rate. Ten seconds after the car enters the quarter circle section, its speed reduces to 46.8 kph [13.00 m/s]. Which of the following best approximates the total distance travelled by the car after 10 seconds? V. 17.00 m/s

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter3: Two-dimensional Kinematics

Section: Chapter Questions

Problem 38PE: A football quarterback is moving straight backward at a speed of 2.00 m/s when he throws a pass to a...

See similar textbooks

Similar questions

Does a car moving around a circular track with constant speed have (a) zero acceleration, (b) an acceleration in the direction of its velocity, (c) an acceleration directed away from the center of its path, (d) an acceleration directed toward the center of its path, or (e) an acceleration with a direction that cannot be determined from the given information?
Why is the following situation impossible? A freight train is lumbering along at a constant speed of 16.0 m/s. Behind the freight train on the same track is a passenger train traveling in the same direction at 40.0 m/s. When the front of the passenger train is 58.5 m from the back of the freight train, the engineer on the passenger train recognizes the danger and hits the brakes of his train, causing the train to move with acceleration 3.00 m/s2. Because of the engineers action, the trains do not collide.
An airplane flying directly eastward at a constant speed travels 300 km in 2.0 h. (a) What is the average velocity of the plane? (b) What is its instantaneous velocity?
4. At 12:00 noon, an arctic explorer starts heading back to his base camp located 5.15 km due north, when a snowstorm suddenly rolls in. Due to poor visibility, he ends up walking 6.22 km at 15.0o east of north until the storm breaks. a) After the storm breaks, how far and in what direction must he walk to get back to his camp? b) If he walks at a constant speed and gets back to his camp at 2:30 PM, at what time (to the nearest minute) did the storm break?
A car drives around a circular track of diameter 156 m at a constant speed of 33.0 m/s. During the time it takes the car to travel 102 degrees around, what is the magnitude of the car s average acceleration? 13.96 m/s^2 6.98 m/s^2 12.19 m/s^2 0 m/s^2 CANNOT USE CENTRIPITAL MOTION EQUATION, must calculate average acceleration
NOT ALLOWED TO USE CENTRIPITAL ACCELERATION EQUATION, must calculate average acceleration!! A car drives around a circular track of diameter 156 m at a constant speed of 33.0 m/s. During the time it takes the car to travel 102 degrees around, what is the magnitude of the car s average acceleration? 13.96 m/s^2 6.98 m/s^2 12.19 m/s^2 0 m/s^2
9 A small plane flies at 294 km/h in still air. If the wind blows directly out of the west at 27.7 km/h, how long does it take her to reach a point 466.1 km directly north of her starting point? Answer upto 2 dp
3. In the x-direction, the spacecraft has an initial velocity component of 22m/s and an acceleration of 24m/s² and time is 7.0s. Find x?
Jim is driving his car at 32m/s (72mi/h) along a highway where the speed limit is 25m/s (55mi/h). A highway patrol car observes him pass and quickly reaches a speed of 36m/s. At that point, Jim is 300m ahead of the patrol car. How far does the patrol car travel before catching Jim?
A rocket is launched at an angle of 53.0 above the horizontal with an initial speed of 100. m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 30.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile. Find (a) the maximum altitude reached by the rocket, (b) its total time of flight, and (c) its horizontal range.
Does a car moving around a circular track with constant speed have (a) zero acceleration, (b) an acceleration in the direction of its velocity, (c) an acceleration directed away from the center of its path, (d) an acceleration directed toward the center of its path, or (e) an acceleration with a direction that cannot be determined from the given information?