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
AnnZ [28]
3 years ago
7

se lanza un cuerpo desde el origen con velocidad horizontal de 40 m/s, y con un ángulo de 60º. calcular la máxima altura y el al

cance horizontal.
Physics
1 answer:
EastWind [94]3 years ago
7 0

Answer:

1. h = 244.8 m    

2. x = 564.8 m  

Explanation:

1. La altura máxima se puede calcular usando la siguiente ecuación:

v_{f}^{2} = v_{0}^{2} - 2gh     (1)                        

Where:

v_{f_{y}}: es la velocidad final = 0 (en la altura máxima)  

v_{0_{y}}: es la velocidad inicial horizontal en "y"

g: es la gravedad = 9.81 m/s²          

h: es la altura máxima =?

La velocidad incial en "y" se puede calcular de la siguiente manera:

tan(\theta) = \frac{v_{0_{y}}}{v_{0_{x}}}

v_{0_{y}} = tan(60)*40 m/s = 69.3 m/s                    

Resolviendo la ecuación (1) para "h" tenemos:

h = \frac{v_{0_{y}}^{2}}{2g} = \frac{(69.3 m/s)^{2}}{2*9.81 m/s^{2}} = 244.8 m          

2. Para calcular el alcance horizontal podemos usar la ecuación:

x = v_{x}*t

Primero debemos encontrar el tiempo cuando la altura es máxima (v_{f_{y}} = 0).

v_{f_{y}} = v_{0_{y}} - gt    

t = \frac{v_{0_{y}}}{g} = \frac{69.3 m/s}{9.81 m/s^{2}} = 7.06 s      

Ahora, como el tiempo de subida es el mismo que el tiempo de bajada, el tiempo máximo es:

t_{m} = 2*7.06 s = 14.12 s          

Finalmente, el alcance horizontal es:

x = 40 m/s*14.12 s = 564.8 m                                                            

Espero que te sea de utilidad!

You might be interested in
Dis hard for me plz plz answer...
Ann [662]

The correct answer would be it would decrease.

P.S.  If you need any technical support with Windows 10, just send a message to me on Brainly and I'll try to figure it out.

8 0
3 years ago
If a car has a velocity of 85 km/hr, how long will it take to accelerate to 45 km/hr if the acceleration is -3 km/hr/sec?
weqwewe [10]

Answer:

Time, t = 13.34 seconds.

Explanation:

Given the following data;

Initial velocity, u = 85km/hr to meters per seconds = 85*1000/3600 = 23.61 m/s

Final velocity, v = 45km/hr to meters per seconds = 45*1000/3600 = 12.5 m/s

Acceleration, a = -3 km/hr/sec to meters per seconds square = -3*1000/3600 = -0.833m/s²

To find the time;

Acceleration = (v - u)/t

-0.833 = (12.5 - 23.61)/t

-0.833t = -11.11

t = 11.11/0.833

Time, t = 13.34 seconds.

6 0
3 years ago
Which of the following is a true statement?
pishuonlain [190]

I think the answer is A.........

7 0
3 years ago
Drew wants to convert square mils to circular mils in an area calculation. How does he do this?
bija089 [108]

Answer:

i dont know

Explanation:

blah blah blah your welcome

6 0
3 years ago
Question 2 10
ss7ja [257]
B Ik it all just know who they’ll you
8 0
3 years ago
Other questions:
  • What is the particle arrangement in a liquid
    11·1 answer
  • The voltage in a battery is 9 volts. The resistance is 3 ohms.<br><br> What is the current?
    9·2 answers
  • COMPLETE THE SENTENCE:<br><br> "A sustainable material is ......
    6·2 answers
  • Which of the following is an example of a chemical change
    8·1 answer
  • When dry ice appears to be smoking what is actually happening
    6·1 answer
  • What does a model of a light wave tell us about<br> brightness and color?
    6·1 answer
  • These 2 processes cause watersheds to change.
    8·2 answers
  • Vector A has magnitude of 8units and makes an angle of 45° with the positive x-axis. Vector B also has the same magnitude of 8un
    14·1 answer
  • Properties of matter are typically broken into two categories:physical and (fill in the blank)
    9·1 answer
  • when drawing a scatter diagram, along which axis is the explanatory variable placed? along which axis is the response variable p
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!