Find will the driver be able to stop in time

Assignment Help Physics
Reference no: EM13514961

Reaction time is the shortest time interval elapsed after the driver of a car decides to apply the break. (For example, the time wasted immediately after the driver sees a child standing on the road). A driver who is travelling at 25 m/s approaches a traffic light at a distance of 120 m ahead of him when he/she sees the light turn red. The driver's reaction time is 0.3 s. and the best slowing down rate by the brakes for this particular car is 3 m/s2. Will the driver be able to stop in time? (Hint: total distance travelled by the car before a full stop. Draw a simple figure.)

Reference no: EM13514961

Questions Cloud

Determine the number of revolutions : Determine the number of revolutions through which a typical automobile tire turns in 1 yr. Suppose the automobile travels 13000 miles each year on tires with radius 0.260 m
Find the range of sound frequencies heard by the student : In a classroom demonstration, a speaker was mounted on the end of a 50.0 cm long arm, Calculate the range of sound frequencies heard by the students in the classroom
Definition of normal-abnormal vary from culture to culture : How does the definition of normal and abnormal vary from culture to culture? Can you think of examples in our culture where what is considered normal by some is considered abnormal by others?
Compute the molar mass of a gas that has a density at stp : Calculate the molar mass of (a) a gas that has a density of 1.98g/L at STP and, (b) an unknown liquid for which 3.33 liters at STP is found to weigh 10.88g
Find will the driver be able to stop in time : Reaction time is the shortest time interval elapsed after the driver of a car decides to apply the break. (For example, the time wasted immediately after the driver sees a child standing on the road). Will the driver be able to stop in time
What amount of dividends should jim declare as income : What amount of dividends, if any, should Jim declare as income this year? Explain.
Explain converted into 3 nitrophthalhydrazide by reacting : 3-nitrophthalic acid will be first converted into 3 nitrophthalhydrazide by reacting with 25% hydrazine. Reduction of the nitro group to an amino group with sodium hydrosulfite affords luminol.
Calculate the initial speed of the lighter car : A 1000- kg car collides with a 1200- kg car that was initially at rest at the origin of an x-y coordinate system.  What was the initial speed of the lighter car (in km/h)
What is the maximum amount of before-tax : What is the maximum amount of before-tax salary Lars would give up to receive health insurance from Volvo and hat would be the after-tax cost to Volvo to provide Lars with health insurance if it could purchase the insurance through its group plan fo..

Reviews

Write a Review

Physics Questions & Answers

  Find the magnetic flux through each turn of the coil

An emf of 22.0 mV is induced in a 497 turn coil when the current is changing at a rate of 9.0 A/s. What is the magnetic flux through each turn of the coil

  A 3000 kg car passes over a bump in a road that follows an

a 3000 kg car passes over a bump in a road that follows an arc of circle of radius 40m. what force does the road exert

  Find out the angular speed of the wheel

It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time. Find out the angular speed of the wheel at t = 2.30 s.

  Find the rate of change of elecric field between the plates

A 12.9-?F capacitor, a 22.1-k? resistor, a switch, and a 25.0-V battery are connected in series. What is the rate of change of the elecric field between the plates of the capacitor

  What is the size of the static friction force on the cabinet

What is the size of the static friction force on the cabinet when the bed is tilted at 20o? At what angle will the file cabinet begin to slide if the coefficient of static friction of steel on steel is Ms= 0.80 and the coefficient of kinetic frict..

  Compute the fundamental frequency

Three successive resonance frequencies for a certain string are 481., 518., and 555. Hz. What is the fundamental frequency

  By what factor does it change the voltage

A transformer has 280 turns in the primary and 110 turns in the secondary. by what factor does it change the voltage

  How much heat is removed from the house

The temperatures indoors and outdoors are 297 and 311 K, respectively. How much heat is removed from the house

  What are speed and pressure of the water

A 25-g rifle bullet travelling 280-m/s buries itself in a 3.6-kg pendulum hanging on a 2.8m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of pendulum's displacement.

  Calculate the thickness of the shell

Bowling balls can be made from a variety of substances and are required to have a circumference of roughly 27.2 inches. calculate the thickness of the shell

  At what position is the third bead in equilibrium

Two small beads having positive charges 18q and q are fixed at the opposite ends of a horizontal insulating rod, extending from the origin (the location of the larger charge) to the point x = d. As, a third small charged bead is free to slide on t..

  Calculate the drift speed of the electrons in the wire

An aluminum wire having a cross-sectional area equal to 4.90 10-6 m2 carries a current of 8.00 A. Find the drift speed of the electrons in the wire

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