A car accelerates in the x direction from rest with a constant acceleration of a 1 1 69 m s 2 for t 1 20 s At that point, the driver notices a tree limb that has fallen on the road and brakes hard with a constant acceleration of a 2 8 47 m s 2 What is an expression in terms of defined quantities, for the car's speed just before the driver begins braking, v1 If the limb is on the road at a distance of 550 meters from where the car begins its initial acceleration, will the car hit the limb

Question: A car accelerates in the + x direction from rest with a constant acceleration of a 1 = 1.69 m/s 2 for t 1 =

A car accelerates in the +x direction from rest with a constant acceleration ofa₁ =1.69 m/s² fort₁ = 20 s. At that point, the driver notices a tree limb that has fallen on the road and brakes hard with a constant acceleration ofa₂ =-8.47 m/s². What is an expression in terms of defined quantities, for the car's speed just before the driver begins braking, v1. If the limb is on the road at a distance of 550 meters from where the car begins its initial acceleration, will the car hit the limb?

Step by Step Solution

★★★★★

3.30 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

To find the expression for the cars speed just before the driver begins braking we can first find th... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

Frosty Beverages has just paid a dividend of $1.8. The non-constant dividend growth rate is expected to be 15% for 3 years, after which point dividends growth is expected to change to a rate of 6%...

CANMNMM January of this year. (a) Each item will be held in a record. Describe all the data structures that must refer to these records to implement the required functionality. Describe all the...

The relationship between x = total number of salmon in a creek and y = percentage of salmon killed by bears that were transported away from the stream prior to the bear eating the salmon was examined...

( 9 % ) Problem 3 : A car accelerates in the + x direction from rest with a constant acceleration of a _ { 1 } = 1 . 5 5 ; m / ( s ^ 2 ) for t _ { 1 } = 2 0 s . At that point the driver notices a...

Edgar accelerates in the X direction from rest with a constant acceleration of A 1 equal to 1 . 7 8 m per second to scale 4 1 Equal to 2 0 seconds at that point the driver noticious at three lines...

Answer the questions with completed solutions. 11A car travels in a straight line with an average velocity of 80.0 km/h for 2.50 h and then With an average velocrty of 40.0 km/h for 1.50 h. (a) What...

mmh Problem-solving help is available online at www.wiley.com/college/cutnell. Section 2.1 Displacement, Section 2.2 Speed and Velocity 1. ssm The space shuttle travels at a speed of about 7.6 X 10'...

An object moves along the x axis according to the equation x = 3.75t - 2.00t + 3.00, where x is in meters and t is in seconds. (a) Determine the average speed between t = 1.80 s and t = 3.50 s. 14.5...

5 v NICH a. Distance O Re R d. displacement b. Velocity e. none of the above c. acceleration 2 Study the position-time graph pictured below and select the statement that is true. J Position vs. Time...

ed mr .Er 12. A particle is moving in xy-plane, and its positions are given by F = x(1) ity(1) ; where x(t)=xo cos(wt+ po), y(t)=yo sin(wt+ po) where xo=2 meters, yo=5 meters, =10 s", and do=Tt/3 are...

After graduating college, you work for a year at a marketing agency, but youre dreaming the whole time of one day opening your own business. Come up with a product or business idea and provide the...

Find a, b, c, and d so that: ab [:] OA. -62 -68 a b c d = Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. 0 10 -1 -8 OB. There is no solution. ***

passing through ( - 9 , 4 ) , and parallel to line whose equation is 5 x - 3 y - 7 = 0

Property Tax Calculations and Journal Entries. The Village of Darbys budget calls for property tax revenues for the fiscal year ending December 31, 2011, of $2,660,000. Village records indicate that,...

Pagnucci Carecenters Inc. provides financing and capital to the health-care industry, with a particular focus on nursing homes for the elderly. The following selected transactions relate to bonds...

If a firm goes from zero debt to successively higher levels of debt, why would you expect its stock price to rise first, hit a peak, and then begin to decline?

Define cash conversion cycle (CCC). Explain why, holding other things constant, a firms profitability would increase if it lowered its CCC.

High correlation between two variables means that one is the cause and the other is the effect. Do you agree? Explain.

6 Theory of Machines 5. A shaft carries five masses A, B, C, D and E which revolve at the same radius in planes which are equidistant from one another. The magnitude of the masses in planes A, C and...

The article You Will Be Tested on This (The Chronicle of Higher Education, June 8, 2007) describes an experiment to investigate the effect of quizzes on student learning. The goal of the experiment...

The cost of Internet access was examined in the report Home Broadband Adoption 2009 (pewinternet.org). In 2009, the mean and median amount paid monthly for service for broadband users was reported as...

The report Communicating to Teens (Aged 1217) (U.S. Department of Health and Human Services, www.cdc.gov) suggests that teens can be classified into five groups based on attitude, behavior, and...

=+what kind of study is commonly used in research in this area?

=+3. With what is Mischels cognitive affective processing systems (CAPS) approach centrally concerned?

=+1. According to Eysenck, what part of the brain influences whether a person is an introvert or an extravert?