1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mash [69]
3 years ago
5

En un parque de atracciones hay una montaña rusa donde los primeros 140 metros son en línea recta, si desde que el carrito esta

en reposo hasta que llega a los 140 metros se le aplica una aceleración constante de 7.5 m/s, calcular el tiempo...
Physics
1 answer:
zubka84 [21]3 years ago
7 0

Answer:

Tiempo, t = 6.11 segundos.

Explanation:

Dados los siguientes datos;

Distancia = 140 m

Aceleración = 7,5 m/s²

Dado que el objeto partió del reposo, su velocidad inicial es igual a 0 m/s.

Para encontrar el tiempo, usaríamos la segunda ecuación de movimiento;

S = ut + ½at²

Dónde;

S representa el desplazamiento o la altura medida en metros.

u representa la velocidad inicial medida en metros por segundo.

t representa el tiempo medido en segundos.

a representa la aceleración medida en metros por segundo cuadrado.

Sustituyendo en la ecuación, tenemos;

140 = 0*t + ½*7.5*t²

140 = 0 + 3.75t²

140 = 3.75t²

Dividiendo ambos lados por 3,75, tenemos;

t² = 140/3.75

t = √37.33

Tiempo, t = 6.11 segundos

You might be interested in
Which characteristic do all minerals have in common?
Korolek [52]

Answer:

Five Characteristics of a Mineral

Minerals Are Natural. You must find minerals in nature; substances concocted in laboratories don't qualify. ...

Minerals Are Inorganic. ...

Minerals Are Solids. ...

Definite Chemical Composition. ...

Crystalline Structure.

These are just some examples.

Explanation:

7 0
3 years ago
Read 2 more answers
When a planet orbits the Sun, the
Anna [14]
I’m not sure I think it’s A
6 0
3 years ago
Read 2 more answers
Encuentra la masa molar<br><br> TO<br><br> de 65 litros de SO2
shepuryov [24]

La masa molar de 65 litros de SO2 es igual a 64,1 g/mol.

<h3>Masa molar</h3>

La masa molar de un compuesto depende de su masa presente en 1 mol, entonces:

                                          MM=\frac{m}{mol}

Para calcular la masa molar de un compuesto, simplemente suma las masas de cada elemento en el compuesto, así:

MM_O = 16g/mol\\MM_S= 32.1g/mol

                                32.1 + 2\times 16 = 64.1g/mol

Así, la masa molar de 65 litros de SO2 es igual a 64,1 g/mol.

Obtenga más información sobre la masa molar en: brainly.com/question/17109809

8 0
3 years ago
How many laws does newton have?
liq [111]
Newton has 3 Laws specifically The Three Laws of Motion
3 0
4 years ago
In the 1960s what dance was being created in the west coast
DerKrebs [107]
The dance that was being created was Hip Hop dance!
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following are advantages of
    10·1 answer
  • An engineer is adding a heat sink to a motor to help absorb some of the heat produced by the motor. Which piece of metal would a
    11·2 answers
  • What current is required in the windings of a long solenoid that has 420 turns uniformly distributed over a length of 0.575 m in
    5·1 answer
  • A car moving south speeds up from 10 m/s to 40 m/s in 15 seconds. What is the car's acceleration?
    7·1 answer
  • Solve the problems here on the pic
    7·2 answers
  • Suggest two ways in which the boy could balance the beam?
    12·2 answers
  • Calculate the magnitude of the linear momentum for the following cases. (a) a proton with mass 1.67 10-27 kg, moving with a spee
    12·1 answer
  • Which molecules from food and air ends up with the cell in the body
    12·1 answer
  • Which option correctly matches the chemical formula of a compound with its name?
    5·1 answer
  • If you place a hot block of metal in room temperature water is it convection or conduction?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!