What steady deceleration while braking

Assignment Help Physics
Reference no: EM131891984

A motorist is traveling at 25m/s. He is 50 m from a stop light when he sees it turns yellow. His reaction time, before stepping on the brake is 0.45 s.

What steady deceleration while braking will bring him to a stop right at the light?

Reference no: EM131891984

Questions Cloud

What policies should be implemented for the handling of data : What policies/procedures should be implemented for the handling of data ensure data protection and business continuity?
The return on market index and net of the risk-free rate : You run a regression in which Y = the return on a particular stock, net of the risk-free rate, and X = the return on a market index, net of the risk-free rate.
Takeoff velocity at the end of the runway : Assume that the plane reaches the required takeoff velocity at the end of the runway. Show your complete solution
Explain clearly what is meant by a renewable resource : Science & Materials Assignment - Sustainable Materials for Construction. Explain clearly what is meant by a renewable resource giving one example
What steady deceleration while braking : What steady deceleration while braking will bring him to a stop right at the light?
Discuss the gievn article relate to time-money and morality : Summaries should cover the details of the article and have a minimum 1200 words of content (double spaced, 12 pt font).
Intensity of the incident unpolarized light : At what angle should the axes of two Polaroids be placed so as to reduce the intensity of the incident unpolarized light to 1/15?
What the critical nature of a database administrators role : Give your opinion on what the critical nature of a database administrator's role is to IT industry organizations.
What information can be obtained from such a spectrum : What phenomenon, makes a hot electric arc produce a rainbow spectrum? What information can be obtained from such a spectrum?

Reviews

Write a Review

Physics Questions & Answers

  What is the tension in the net

An astronaut weighs 7*10^2 N on the surface of the earth (M earth=5.98*10^24 kg). What is her weight 7.70*10^6 m above the earth.

  In a belly-flop diving contest-make a competitive splash

In a belly-flop diving contest, the winter is the driver whomakes the biggest splash upon hitting the water. The size of thesplash depends not only on the drivers style, but also on theamount of kinetic energy that the driver has.

  What is the height of the image on her retina

A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 56.11 diopters, and the lens-to-retina distance is 1.791 cm. (a) How far is the blackboard from her eyes? (b) If the writing on the blackboard i..

  What is the velocity of the bodies after collision

A marble slide towards a 2nd marble at rest along the surface of frictionless table-top. What is the velocity of the 2 bodies after collision

  Estimate what beat frequency is heard

Two timpani (tunable drums) are played at the same time. One is tuned so that when it is struck, sound is produced that has a wavelength of 2.20 m. what beat frequency is heard

  Evaluate how much heat is required

Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of 9 grams of argon is raised by 75 K under conditions of constant pressure. Assuming that argon is an ideal gas, evaluate how much heat is required? J

  What is speed of rock as it hits the ground

A stone is thrown with an initial speed of 15 m/s at an angle of 53 degrees above the horizontal from the top of a 35m building. What is speed of rock as it hits the ground

  Problem of crime scene

At a crime scene, the forensic inestigator notes that 7.5-g leadbullet that was stopped in a door-frame apparently meltedcompletely on impact. Assuming the bullet was fired at roomtemperature of 20°C, what does the investigator calculate theminimum m..

  How many kilograms of ethyl alcohol would freeze

Suppose that the amount of heat removed when 2.8 kg of water freezes at 0.0 oC were removed from ethyl alcohol at its freezing/melting point of -114.4 oC. How many kilograms of ethyl alcohol would freeze

  How tall will it appear to be in the image

you have encouraged your little sister, who has just gotten glasses for her severe near-sightedness, to give you those glasses so you can play with them. If your sister's face is 180. mm-tall, how tall will it appear to be in the image (in mm)

  A diver leaves a 3 m- board on a trajectory that takes her

a diver leaves a 3 m- board on a trajectory that takes her 2.2 m above the board and then into the water 2.7 m

  Find the minimum emf the battery charger must supply

A 11.45 Volt battery with internal resistance R1 = 0.1373 is said to be charged by a battery charger that is capable of delivering a current i= 9.7959 Amp. Find the minimum emf the battery charger must be able to supply in order to charger the bat..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd