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
Alex73 [517]
3 years ago
7

During the final 5 seconds of a race a cyclist increased her velocity from 4 m/s to 7 m/s . What was her average acceleration du

ring those last 5 seconds
Mathematics
1 answer:
GREYUIT [131]3 years ago
8 0

Answer:

The average acceleration of the cyclist was 0.6 m/s².

Step-by-step explanation:

Acceleration:

The rate change of velocity per unit time is call the acceleration of the object.

a=\frac{v-u}t

u= initial velocity

v= final velocity

t= time taken change of velocity.

During the final 5 seconds of a race cyclist increased her velocity from 4m/s to 7 m/s

Here v= 7 m/s and u=4 m/s t=5 seconds

\therefore a=\frac{7\ m/s-4 \ m/s}{5s}

     =\frac{3}{5} \ m/s^2

     =0.6 m/s²

The average acceleration of the cyclist was 0.6 m/s².

You might be interested in
A giraffe can run 32 miles per hour. What is the speed in feet per second? (1 mile = 5280 ft)
velikii [3]

Set up your conversion using dimensional analysis. That's just a fancy way of saying set up your values so you cancel what you don't need and keep what you do. If we want to convert miles per hour to feet per second, we need to convert the miles to feet using the fact that there are 5280 feet in 1 mile, and then convert the hours to seconds using the fact that there are 3600 seconds in an hour. Your set up will look like this (it's all about setting up the fractions correctly): \frac{32miles}{hour}*\frac{5280feet}{1mile}*\frac{1hour}{3600seconds}. If you look at that closely, you can see the there is a label of miles on the top in the first fraction and on the bottom in the second fraction. Those cancel each other out by reducing. Then in the bottom of the first fraction there is hours and in the top of the last fraction there is hours. Those cancel out. From top to bottom or bottom to top you can cancel like labels. This leaves us with feet in the top and seconds in the bottom. Now it's a matter of doing the math. You multiply straight across the top and straight across the bottom. \frac{168960feet}{3600seconds}. Simplifying you get 46.933 feet per second.

4 0
3 years ago
Read 2 more answers
Increasing and decreasing Functions (anyone help):
Alekssandra [29.7K]

Step-by-step explanation:

the function of increasing for -2.5 < x < 2.5

or written as :

x > -2.5

x < 2.5

8 0
3 years ago
6multiplied by 3 to the -2nd power minus 3 to the fourth power multiplied by 9 plus 4 to the 0th power
Contact [7]
Answer in fraction form is -2182/3
Answer in decimal form is -727.3*
Answer in Mixed number form -737 1/3
5 0
3 years ago
HELP PLEASE! if a||b what is the value of x?
Norma-Jean [14]

Answer: x=30 (Sorry for wasting your time if the answer is wrong)


Step-by-step explanation:

I did it the lazy way

80-20=60

60÷2=30

(If this is completely wrong then again, sorry)

8 0
3 years ago
What is cos P?<br><br> A. 5/13<br><br> B. 12/5<br><br> C. 5/12<br><br> D. 12/13
guajiro [1.7K]
The answer is A. 5/13
4 0
3 years ago
Read 2 more answers
Other questions:
  • the volume of a square pyramid with height 2.4cm is 3.2cm. what is the width of the base of the pyramid?
    8·1 answer
  • Your cell phone plan costs $24.99 per month plus $0.15 for each text message you send or receive. You have at most $28 to spend
    5·1 answer
  • I need help with this 4 problems.please
    6·2 answers
  • Solve. -1/2+(3/4*4/9)=
    15·1 answer
  • Find the area of the parallelogram. HELP ASAP!!
    14·2 answers
  • David drives 40 miles in one hour. How many miles does he drive 1.5 hours?
    9·1 answer
  • dominique and ella are comparing whose jet traveled faster. The graph shows the relationship between the total distance Dominiqu
    15·1 answer
  • I have lakes with no water, mountains with no stone and cities with no buildings. What am I?
    14·1 answer
  • Find out which of the linear equations below have a negative slope (select all found)
    8·1 answer
  • Samuel drives 144 miles in 2 1/4 hours. If he continues at the same rate, he will have driven
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!