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
svet-max [94.6K]
3 years ago
7

A body travels 10 meters during the first 5 seconds of its travel, and it travels a total of 30 meters over the first 10 seconds

of its travel. What is its average speed during the time from t = 5 seconds to t = 10 seconds?
Mathematics
2 answers:
meriva3 years ago
5 0
The answer is 4 m/s.

In the first 5 seconds, a body travelled 10 meters. In the first 10 seconds of the travel, the body travelled a total of 30 meters, which means that in the last 5 seconds, it travelled 20 meters (30m + 10m).
The relation of speed (v), distance (d), and time (t) can be expressed as:
v = d/t

We need to calculate the speed of the second 5 seconds of the travel:
d = 20 m (total 30 meters - first 10 meters)
t = 5 s (time from t = 5 seconds to t = 10 seconds)

Thus:
v = 20m / 5s = 4 m/s
Vaselesa [24]3 years ago
3 0
<span><span>A body travels 10 meters during the first 5 seconds of its travel,and a total of 30 meters over the first 10 seconds of its travel
20miles / 5sec = 4miles /sec would be the average speed for the last 20 min</span><span>
</span></span>
You might be interested in
the eccentricity of a hyperbola is defined as e=c/a. find an equation with vertices (1,-3) and (-3,-3) and e=5/2
Ksivusya [100]

Answer:

\frac{(x + 1 )^{2} }{4} - \frac{(y + 3 )^{2} }{21} = 1.

Step-by-step explanation:

If (α, β) are the coordinates of the center of the hyperbola, then its equation of the hyperbola is \frac{(x - \alpha )^{2} }{a^{2} } - \frac{(y - \beta )^{2} }{b^{2} } = 1.

Now, the vertices of the hyperbola are given by (α ± a, β) ≡ (1,-3) and (-3,-3)

Hence, β = - 3 and α + a = 1 and α - a = -3

Now, solving those two equations of α and a we get,  

2α = - 2, ⇒ α = -1 and

a = 1 - α = 2.

Now, eccentricity of the hyperbola is given by b^{2} = a^{2}(e^{2}  - 1) = 4[(\frac{5}{2} )^{2} -1] = 21 {Since e = \frac{5}{2} given}

Therefore, the equation of the given hyperbola will be  

\frac{(x + 1 )^{2} }{4} - \frac{(y + 3 )^{2} }{21} = 1. (Answer)

6 0
2 years ago
Which is greater 1 1/10 or 1 1/12
RoseWind [281]
1 1/10
........................
3 0
3 years ago
Read 2 more answers
100 points pls right answers only it’s for apex
Feliz [49]

Answer:

B

Step-by-step explanation:

D because all of the answers make since but my strongest opinion is B

8 0
3 years ago
Read 2 more answers
Colin buys a car for £42800. It depreciates at a rate of 5% per year. How much will it be worth in 2 years? Give your answer to
11111nata11111 [884]

Principal=₹42800

Rate of interest=5% but 2 years so multiply by 2 =5×2=10%

Time=2 years

Simple interest=42800×10×2/100= ₹8560

Amount=42800+8560=Rs51360

The answer is ₹ 51360

7 0
2 years ago
Which expressions are equivalent to x+x+x + 2?
Anettt [7]

Answer:

x^{3} + 2

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • A gardener has three flowering shrubs and four nonflowering shrubs, where all shrubs are distinguishable from one another. He mu
    10·1 answer
  • Find the LCM of 6 and 15.
    12·2 answers
  • 4 days I have 140 copies of a book, 9 days I only have 50 left. Write an equation where c(t)=my+b where c is number of copies st
    8·1 answer
  • I need help please i am so bad at math
    12·1 answer
  • <img src="https://tex.z-dn.net/?f=Compare%20%5C%3A%20the%20%5C%3A%20graphs%20%5C%3A%20of%20%5C%5C%203x%20-%204y%20%3D%208%20%5C%
    5·1 answer
  • Pls help will give points
    15·1 answer
  • Which statement below is not true about plant cells.
    7·2 answers
  • HELP ME PLEASE EDCITE !!!!
    5·1 answer
  • Alonso leans a 28-foot ladder against a wall so that it forms an angle of 65° with the
    13·1 answer
  • Mathew finds the deepest part of the pond to be 185 meters
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!