Assume you are driving a car at a constant speed of 80.0 km/h. Suddenly you see a deer standing on the highway and you must put on the brakes. Your reaction time (time elapsed between the moment you see the deer and your foot hitting the brakes) is 0.127 sec. The brakes provide an acceleration of -5.5 m/s2. Find the distance (in m) the car travels (at 80.0 km/h) during your reaction time. Calculate the total distance (in m) traveled by the car before stopping.

Assume you are driving a car at a constant speed of 80.0 km/h. Suddenly you see a deer standing on the highway and you must put on the brakes. Your reaction time (time elapsed between the moment you see the deer and your foot hitting the brakes) is 0.127 sec. The brakes provide an acceleration of -5.5 m/s2. Find the distance (in m) the car travels (at 80.0 km/h) during your reaction time. Calculate the total distance (in m) traveled by the car before stopping.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter3: Motion Along A Straight Line

Section: Chapter Questions

Problem 9CQ: If you divide the total distance traveled on a car trip (as determined by the odometer) by the...

See similar textbooks

Similar questions

A deer is running east to west on a straight line. It runs (a) at a constant speed of 2.5 m/s for the first 24 sec, (b) at a reduced speed (also constant) of 0.6 m/s for the next 15 sec, (c) sprints at a constant speed of 3.1 m/s for the next 1 minute and 40 seconds. Compute the total distance covered and the average speed in mph.
In problem 11, if the dragstrip is ¼ mile, or 402.3 meters long, at the acceleration of 25.2 m/s2, what is the time that the dragster records for his or her quarter mile run to two decimal places assuming uniform acceleration during the entire length of the track? What was the dragster’s final velocity in miles per hour (two decimal places) when it crossed the finish line and deployed its parachute?
An unidentified flying object (UFO) is observed to travel a total distance of 19000 m, starting and ending at rest, over a duration of 4.23 s. Assuming the UFO accelerated at a constant rate to the midpoint of its journey and then decelerated at a constant rate the rest of the way, what was the magnitude of its acceleration? Express your answer in g s , where 1 g = 9.81 m/s^2.
A train is traveling down a straight track at 20 m/s when the engineer applies the brakes, resulting in an acceleration of −1.0 m/s2 as long as the train is in motion. How far does the train move during a 40-s time interval starting at the instant the brakes are applied?
A train is traveling down a straight track at 32 m/s when the engineer applies the brakes, resulting in an acceleration of −1.0 m/s2 as long as the train is in motion. How far does the train move during a 64-s time interval starting at the instant the brakes are applied in meters?
An object is thrown from a level field with initial upward speed 17 m/s and forward speed 9.9 m/s. How far (in m) from its launch point is its landing place? You do not need to put the unit in the answer, just the number. As usual, ignore air resistance, etc; use the acceleration due to gravity as 9.8 meters per second squared.
A ball is thrown into the air by a baby alien on a planet in thesystem of Alpha Centauri with a velocity of 49 ft/s. Its heightin feet after t seconds is given by y = 49t −25t2.a.) Find the average velocity for the time period beginningwhen t0 = 1 second and lasting for the given time.t = .01 sec:t = .005 sec:t = .002 sec :t = .001 sec: b.) Estimate the instanteneous velocity when t = 1.
A car moving with uniform acceleration covers T 450 meter in first 5 second interval and covers 700 meters in next 5 second interval. The acceleration of the car is
Angelito is driving at 6 m/s when a traffic enforcer signals that he should speed up. He then steps on the gas pedal and accelerated uniformly to a speed of 15 m/s in 4.5 s. Find the total distance Angelito traveled. Assume Angelito's reaction time is 0.15 s.
A car is travelling at a constant speed of 100 km.hr at NLEX when the driver noticed that the bridge 10 m away is cut off. If the driver immediately applied the brakes upon noticing the cut off bridge, what must be his deceleration so he would not fall to the river?
The height of an object thrown upward from the roof of a building 408 ft. tall, with a initial velocity of 96 ft/ sec, is given by the equation h= -16t2+96t+408, where h represents the height of the object after t seconds. How long will it take the object to hit the ground?. Answer in exact form and decimal form rounded to the nearest hundredth.
A runner with a good awareness of her pace runs along a path of unknown length at a speed of 0.275 mi/min and then walks back to her starting point at a speed of 0.0500 mi/min. She neglects to note her time for each part of her path, but does measure the total round trip time to be 60.0 min. How far did she run? Do not include the walking distance