Acceleration of the blue car once the brakes are applied

Assignment Help Physics
Reference no: EM13676533

Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.1 m/s2 for 3.7 seconds. It then continues at a constant speed for 12.4 seconds, before applying the brakes such that the car’s speed decreases uniformly coming to rest 174.91 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the blue car comes to a stop.

1. What is the acceleration of the blue car once the brakes are applied?

2. How far does the blue car travel before its brakes are applied to slow down?

Reference no: EM13676533

Questions Cloud

Component of velocity-velocity and acceleration : A particle moves so that its position (in meters) as a function of time in (in seconds) is r = I + 3.0 t^2 J+t K. Write expressions for its velocity and its acceleration as functions of time. Evaluate for t = 6.1 s. i-component of velocity?
Sound of squealing brakes alerts the bird to onrushing car : A driver is driving once again from Nogales to Tucson on I-19, past the wreck of the car that veered off the road and struck a cactus, surrounded by a throng of industrious physics students measuring the skid marks, the crumpled hood, and the indenta..
Electric field-long pipe of outer radius and inner radius : A long pipe of outer radius 3.50 cm and inner radius 2.98 cm carries a uniform charge density of 5.22 mC/m3. Using Gauss\'s law and assuming the pipe is adequately long to consider it infinitely long, compute the electric field r = 7.35 cm from the c..
Gravity is still acting in the negative y-direction : What minimum constant acceleration in the x-direction must be provided by the engines so the cycle crosses safely if the opposite side is 0.660 km lower than the starting point? At what speed does the motorcycle land if it maintains this constant hor..
Acceleration of the blue car once the brakes are applied : Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.1 m/s 2 for 3.7 seconds. It then continues at a constant speed for 12.4 seconds, before applyin..
An earthquake p-wave is passing during the earth : An earthquake P-wave is passing during the earth. What are the relative intensities and amplitudes of the wave at distances of 5 and 10 km from the center of the quake?
Siren radiates sound uniformly in all directions : At a distance of 4.50 m from a siren, the sound intensity is 5.13 × 10-2 W/m2. Assuming that the siren radiates sound uniformly in all directions, discover the total power radiated.
Ow much sound energy comes during the window in one hour : Sound is passing perpendicularly during an open window whose dimensions are 1.1 m x 0.75 m. The sound intensity level is 86 dB above the threshold of human hearing. How much sound energy comes during the window in one hour?
Stationary bird-watcher and emits a frequency : A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1380 Hz. The bird-watcher, but, hears a frequency of 1450 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?

Reviews

Write a Review

Physics Questions & Answers

  What is the total kinetic energy of the sphere

A solid sphere of mass 2.5 Kg and a radius .15m starts from rest at the top of the ramp inclined 15 degrees, and rolls to the bottom without slipping. What is the total kinetic energy of the sphere

  Rate is angular momentum of particle changing

A 3.0 kg particle with velocity v = (5.0 m/s) ihat - (6.0 m/s)jhat is at x = 3.0 m, y = 8.0 m. It is pulled by a 7.0 N force inthe negative x direction. What is the angular momentum of the particle about the origin? What torque about the origin act..

  Find out her speed and the angular speed of the wheel

a girl who weighs 720 N rides on a FErris wheel of radius 7.5 m. when at the top of the wheel her effective weight is 600 N. Find out her speed and the angular speed of the wheel

  Find the oscillation frequency of the pendulum

A pendulum consists of a mass m = 0.120 kg hanging from a flexible string of length L. Find the oscillation frequency of the pendulum

  Assume the same static friction coefficient

If the backpack begins to slide when the spring ( = 150 ) stretches by 2.40 , what is the coefficient of static friction between backpack and table.

  A wave travels along a string at a speed

A wave travels along a string at a speed of 295m/s. What will be the speed if the string is replaced with one made of the same material and under the same tension however having twice the radius?

  How much of the volume is now above the water

A log floats in a river with 1/5 of its volume above the water. Density of water is 1000 kg/m, how much of the volume is now above the water

  What uniform magnetic field applied perpendicular to a beam

what uniform magnetic field applied perpendicular to a beam of electrons moving at 3.59 x 106 ms is required to make

  What is the voltage out of the battery

A 31.0 omegacap.gif resistor and an 16.0 omegacap.gif resistor are connected in series across a 15.0 V battery. What is the voltage out of the battery

  Obtain the satellites altitude above the earths surface

When in orbit, a communication satellite attracts the earth with aforce of 19.0 kN and the earth-satellite gravitational potential energy (relative to zero at infiniteseparation) is -1.59 multiplied by 1011 J. Find the satellite's altitude above th..

  What centripetal acceleration does a passenger experience

The distance from the center of a Ferris wheel to a passengerseat is 9 m. What centripetal acceleration does a passenger experience

  What were the original speeds of the two cars

When both cars increase their speed by 7.0m/s , they then have the same kinetic energy. What were the original speeds of the two cars

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