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
sergeinik [125]
3 years ago
8

A race car circles 10 times around a circle with a diameter of 7 km track in 50 min. Using SI

Physics
1 answer:
vodka [1.7K]3 years ago
4 0

Average Speed = 23.33 m/s

<u>Explanation:</u>

Given:

Diameter = 7 km

So, to find the distance, we need to multiply it by 10 as the race car circles 10 times round this 7 km track.

Distance = 7 × 10 = 70 Km or 70,000 m

Time        = 50 mins

                = 50 × 60 = 3000 s

Now, in order to find the average speed for 10 cycles, we use the formula:

Speed = \frac {Distance} {Time}

So by substituting the above values in the given formula, we get:

Speed = \frac {70,000} {3000}

Speed = 23.33 m/s

You might be interested in
The distance from home plate to the pitchers mound is 18.5 meters. For a pitcher capable of throwing at 3.85m/s(86mi/hr), how mu
Taya2010 [7]

Given that:

Distance , s = 18.5 m

Velocity , v = 3.85 m/s

Time , t =?

Since,

Velocity = distance/time

or

Time= distance/velocity

time= 18.5/ 3.85

time= 4.8 s

So the time elapse between the release of the ball and the ball passing home plate is 4.8 seconds.

7 0
3 years ago
Heliocentric theory:
AfilCa [17]
The answer is The Heliocentric Theory was a theory that the planets revolved around the sun

Answer: Proposed that the sun was the center of the solar system.
8 0
3 years ago
Read 2 more answers
How do i get a bf and how do i start to talk to him? I have this one crush and we have not even said one word to each other, Hes
taurus [48]
First introduce yourself. Start talking to him little by little. Compliment him, that’ll help. Make some jokes, and talk about stuff he is interested in. Make conversation. Try not to be overbearing.
4 0
3 years ago
Read 2 more answers
3. Neha travels 4 m towards the north, 3m towards the east, and then 7 m towards south, find the displacement and total distance
Digiron [165]

Answer:

Explanation:

Explanation: total displacement =3√2m. and total distance covered=14m. I hope this is right and helps u.

7 0
3 years ago
Twins Jody and Taylor are rearranging the furniture in their bedroom and want to move a dresser across the room. The dresser has
xeze [42]

Answer:

yes, They will be able to move the dresser.

Explanation:

sliding force 90N

55N + 38N = 93N

therefore, yes the twins can move the dresser

7 0
3 years ago
Other questions:
  • Within an internal combustion engine, the can-shaped component that moves up and down the cylinder
    13·1 answer
  • On which date does the antarctic circle have 24 hours of daylight
    7·2 answers
  • Question 11 of 11 | Page 11 of 11
    13·1 answer
  • For a short time the missile moves along the parabolic path y=(18−2x2) km. If motion along the ground is measured as x=(4t−3) km
    6·1 answer
  • A balloon has a volume of 18.0-L at a pressure of 87.6 kPa. What will be the new volume when the pressure is 48.2 kPa?
    6·1 answer
  • 5.) A 2000 N bear slides down a tree at a constant velocity, what is the
    12·1 answer
  • John is traveling north at 20 meters/second and his friend Betty is traveling south at 20 meters/second. If north is the positiv
    5·2 answers
  • Which describes a reflected image in a plane mirror?
    11·1 answer
  • What part of the Milky Way allows for determination of its rotational direction? A. Celestial body B. Galactic body C. Galactic
    13·2 answers
  • What happened in the gray zone between solid and liquid​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!