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
skad [1K]
3 years ago
7

Un ciclista recorre 10 km en 2 h.Calcula su velocidad media en km/h.¿cuantos metros recorre cada segundo

Physics
1 answer:
lys-0071 [83]3 years ago
4 0

Answer:

La velocidad media es 5 \frac{km}{h}, que equivale a 1.389 \frac{m}{s}

Explanation:

La velocidad es una magnitud física que expresa la relación entre el espacio recorrido por un objeto y el tiempo empleado para ello.

La velocidad media relaciona el cambio de la posición con el tiempo empleado en efectuar dicho cambio. Por lo que se calcula como la distancia recorrida por un objeto dividido por el tiempo transcurrido:

velocidad=\frac{distancia}{tiempo}

En este caso:

  • distancia= 10 km= 10,000 m (siendo 1 km= 1,000 m)
  • tiempo= 2 h= 7,200 s (siendo 1 h= 3,600 s)

Entonces, reemplazando en la definición de velocidad media:

velocidad=\frac{10 km}{2 h}= \frac{10,000 m}{7,200 s}

Resolviendo se obtiene:

velocidad=5 \frac{km}{h}= 1.389\frac{m}{s}

<u><em>La velocidad media es 5 </em></u>\frac{km}{h}<u><em>, que equivale a 1.389 </em></u>\frac{m}{s}<u><em></em></u>

You might be interested in
Please answer! thank you!
lesantik [10]

Answer:

Maybe A.... I'm not sure

Explanation:

8 0
3 years ago
Read 2 more answers
What is the 4 digit code
Contact [7]

Answer:

lol doge meme

Explanation:

8 0
3 years ago
Part C
Nat2105 [25]

Answer:

When mass increases, kinetic energy also increases. Changing mass doesn’t affect his speed on a given ramp.

Explanation:

7 0
3 years ago
I will pick the brainiest! Please, and thanks! :) Please give a real answer! :)
VARVARA [1.3K]

Answer:

0.60

Explanation:because you multiply

7 0
3 years ago
A skydiver accelerates from REST at 9.8 m/s² for the first 5m of their fall. Calculate their final speed. (Give your answer to 2
Kaylis [27]

Answer:

The final speed is 9.89 m/s.

Explanation:

Initial speed of skydiver is 0 as it was rest.

Acceleration of the skydiver is 9.8 m/s²

It accelerates for the first 5 m of their fall.

It is required to find their final speed. Let v is the final speed. It can be calculated using third equation of motion.

v^2-u^2=2as

Here, u = 0

a = 9.8 m/s²

s = 5 m

v=\sqrt{2gs} \\\\v=\sqrt{2\times 9.8\times 5} \\\\v=9.89\ m/s

So, the final speed is 9.89 m/s.

5 0
3 years ago
Other questions:
  • A block with mass m = 0.450 kg is attached to one end of an ideal spring and moves on a horizontal frictionless surface. The oth
    14·2 answers
  • Two massless bags contain identical bricks, each brick having a mass M. Initially, each bag contains four bricks, and the bags m
    5·1 answer
  • PLEASE HELP<br> 8th grade honors science
    15·2 answers
  • The energy of the electron in Hydrogen atom can be shown to be given by En = -13.6/n^2 eV, where n represents the principal quan
    10·1 answer
  • What is the density of a piece of quartz with a mass of 30g and a volume of 6cm^3
    5·1 answer
  • How far will a arrow fly is shot horizontally from a cliff that is 7m high and with a speed of 30?
    10·1 answer
  • A force of 40N is applied to a 28 g mass, what is the acceleration? (round to the hundredths place)
    11·1 answer
  • Explain, using the particle theory of matter, how diffusion takes place.
    5·1 answer
  • Wil-E-Coyote drops a bowling ball off a cliff to try to catch the Roadrunner. The cliff is 132m high. how far does it fall in th
    10·1 answer
  • If the N pole of a magnet is brought near to an unmagnetized iron, nail, then the nail becomes​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!