Question

A. Consider a race of n cars that leave the same place and with constant speeds, but different from each other. If at a given moment the distance between each car and the one in front of it everyone has the same distance, at what other point in the race will this happen? Justify your answer. B. What is the value of the ratio between the speed of the fastest in relation to that of the slowest?

89

likes
443 views

Answer to a math question A. Consider a race of n cars that leave the same place and with constant speeds, but different from each other. If at a given moment the distance between each car and the one in front of it everyone has the same distance, at what other point in the race will this happen? Justify your answer. B. What is the value of the ratio between the speed of the fastest in relation to that of the slowest?

Expert avatar
Hank
4.8
106 Answers
**A.** Vamos considerar que no momento inicial, a distância entre cada carro e o da frente dele é a mesma. Isso significa que a diferença de distância percorrida por cada carro também é a mesma.

Se a velocidade do carro mais rápido é v_1, a do segundo carro é v_2, e assim por diante até a velocidade do carro mais lento v_n, a distância percorrida por cada um deles será igual em um certo momento.

Se após um tempo t a distância entre eles for a mesma novamente, isso significa que a diferença de distância percorrida por cada carro continua a mesma. Portanto, no novo momento em que isso acontecer, cada carro terá percorrido uma distância maior, mas a relação de distância entre eles será a mesma.

**Resposta:** Em outro momento da corrida em que a distância entre cada carro e o da frente dele seja a mesma, será quando esta relação de distância percorrida por cada um se mantiver constante.

**B.** A relação entre a velocidade do carro mais rápido e a do mais lento pode ser encontrada pela razão entre suas velocidades.

Se a velocidade do carro mais rápido é v_1 e a do mais lento é v_n, então a relação será:

\frac{v_1}{v_n}

**Resposta:** A relação entre a velocidade do carro mais rápido em relação à do mais lento é \frac{v_1}{v_n}.

Frequently asked questions (FAQs)
What is the value of f(x) = ∛x at x = 64?
+
What is the speed of a car traveling 120 miles in 2 hours?
+
Math Question: Graph the inequality 2x + 4y ≥ 8 on a coordinate plane. (
+
New questions in Mathematics
Add. 7/w²+18w+81 + 1/w²-81
a ferry travels 1/6 of the distance between two ports in 3/7 hour. The ferry travels at a constant rate. At this rate, what fraction of the distance between the two ports can the ferry travel in one hour.
Revenue Maximization: A company sells products at a price of $50 per unit. The demand function is p = 100 - q, where p is the price and q is the quantity sold. How many units should they sell to maximize revenue?
Write 32/25 as a percent
A car that starts from rest moves for 11 min, reaching a speed of 135 km/h, calculate the acceleration it had
Use the elimination to find the solution to each linear system. X+y=43 2x-y=20
what is the annual rate on ​$525 at 0.046​% per day for 3 months?
"If three wolves catch three rabbits in three hours, how many wolves would it take to catch a hundred rabbits in a hundred hours?" The answer is the number of response units.
(2b) to the 1/4th power. Write the expression in radical form.
v Is the following statement a biconditional? If Shannon is watching a Tigers game, then it is on television.
Solve : 15/16 divide 12/8 =x/y
show step by step simplification: (¬𝑑∨((¬b∧c)∨(b∧¬c)))∧((𝑎 ∧ 𝑏) ∨ (¬𝑎 ∧ ¬𝑏))∧(¬𝑐∨((¬𝑑∧𝑎)∨(𝑑∧¬𝑎)))
How many square feet of floor area are there in three two-storey apartment houses, each of which is 38 feet wide and 76 feet long?
Given (3x+2)E [2;14] how much money (in soles) does Sophia have if numerically it is the greatest value of x?
A machine produces 255 bolts in 24 minutes. At the same rate, how many bolts would be produced in 40 minutes?
9 x² + 2x + 1 = 0
The mass of 120 molecules of X2C4 is 9127.2 amu. Identify the unknown atom, X, by finding the atomic mass. The atomic mass of C is 12.01 amu/atom
The area bounded by the curve y=ln(x) and the lines x=1 and x=4 above the x−axis is
The following incoming payments show up at a tax inspection: 25 000€ on 19.01.2008, 140 000€ on 27.03.2008 and 19 000€ on a date that which is illegible, and 60 000€ on 15.06.2008. On which date did the payment of the 19 000€ appear, if on 30.06.2008 the money on the account (incl. interest at 4%) is 246 088.89€? Use simple interest and 30E/360 DCC. Solution: 45 days, 15.05.08
The slope of the tangent line to the curve f(x)=4tan x at the point (π/4,4)