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
ludmilkaskok [199]
3 years ago
5

Un balón de fútbol que se patea aun angulo de 45° con la horizontal, recorre 30m antes de chocar contra el suelo encuentre, la r

apidez inicial del balón,el tiempo que permanece en el aire, la altura máxima que alcanza
Mathematics
1 answer:
Mamont248 [21]3 years ago
4 0

Responder:

Explicación paso a paso:

El movimiento de la pelota es un movimiento de proyectil ya que se permite que el objeto caiga libremente bajo la gravedad.

Según el rango, el rango del objeto es la distancia cubierta por el objeto en la dirección horizontal.

Rango = U²sin2theta / g

U es la velocidad inicial de la pelota

theta es el ángulo de lanzamiento

g es la aceleración debido a la gravedad

Rango dado = 30 m

Theta = 45 °

Podemos obtener la velocidad inicial del objeto sustituyendo los valores dados en la fórmula

30 = u²sin2 (45 °) /9.81

30 = u²sin90 ° / 9.81

Multiplicación cruzada

294.3 = u²

U = √294.3

U = 17.16 m / s

La velocidad inicial de la pelota es 17.16m / s

- El tiempo que la pelota pasó en el aire es su tiempo de vuelo.

Tiempo de vuelo = 2Usintheta / g

T = 2 (17.16) sen45 ° / 9.81

T = 24.27 / 9.81

T = 2.47 segundos

El tiempo que la pelota pasó en el aire es 2.47 segundos

- La altura máxima de la pelota se expresa como se muestra.

Altura máxima = U²sin²theta / 2g

Altura máxima = 17.16² (sin45 °) ² / 2 (9.81)

Altura máxima = 147.23 / 19.62

La altura máxima alcanzada por la pelota es 7.50m

You might be interested in
A bouncy ball is dropped such that the height of its first bounce is 2.75 feet and each successive bounce is 80% of the previous
Allushta [10]

Answer:

0.3 feet

Step-by-step explanation:

2.75(0.8)^x

in which x is the number of bounces after the firts bouce

bouce 12 would mean x=11

2.75(0.8)^11 = 0.2

7 0
2 years ago
Evaluate the expression when a = 9, b = 2, c = - 6 and d= -4<br> a-b<br> c-d
Anna35 [415]

Answer:

1. 9-2=7

2. -6-(-4)=-2

Step-by-step explanation:

a=9

b=2

c=-6

d=-4

8 0
1 year ago
What value of x is in the solution set of 9(2x + 1) &lt; 9x – 18?
fredd [130]
To solve these kinds of problems, it is necessary to isolate x:

9(2x + 1) <span>< 9x - 18

Distribute 9:
18x + 9 </span><span>< 9x - 18

Subtracting 9 from both sides of the equation:
18x + 9 - 9 </span><span>< 9x - 18 - 9
18x </span><span>< 9x - 27

Subtracting 9x from both sides of the equation:
18x - 9x </span><span>< 9x - 27 - 9x
9x </span><span>< -27

x </span><span>< -3

Therefore, values of x </span><span>< -3 will satisfy the given equation.</span>
7 0
3 years ago
T is the midpoint of AE. AT=4x-3 and TE= 2x+7, find the length of AE
iris [78.8K]

If T is the midpoint, then that means its exactly 1/2 of the way between 2 points

this means we can set the 2 given values equal

4x - 3 = 2x + 7

first move like terms to the same side

2x = 10

x = 5

now that we know the length of x, we plug it back in to get the length

4x - 3 + 2x + 7 = 6x + 4

6(5) + 4 = 34

7 0
3 years ago
What is the values of a and B
Nady [450]
The value of A is 6 and B is 8
3 0
2 years ago
Other questions:
  • Help me please,Thank;) ONLY IF YOU KNOW THE CORRECT ANSWER
    11·1 answer
  • What is the answer to this question
    13·1 answer
  • Which numbers are the extremes of the proportion 3:4=6:8
    14·1 answer
  • 180+8x=160+6x help me find x
    6·1 answer
  • Which is the opposite of -5?
    15·1 answer
  • 30 POINTS NEED HELP ASAP WILL MARK BRAINLY
    10·1 answer
  • HELP PLEASE FAST<br> Determine the value of x
    11·1 answer
  • Find the area of a rhombus having perimeter 80 em and one diagonal 24 cm.<br>​
    12·1 answer
  • Solve -7x^2+x+9=-6x quadratic formula
    12·1 answer
  • Belinda is jumping on a trampoline. She jumps up with an initial velocity (v0) of 17 feet per second. The function d(t) = v0t-16
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!