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
max2010maxim [7]
3 years ago
7

A car start from rest and accelerates at the rate of 2m/s² for 5 seconds. it maintenance this velocity for another 5 seconds. it

eventually undergoes a uniform deceleration and finally comes to rest after further 5 seconds.
A) draw the velocity-time graph for the journey

B) find the acceleration and deceleration respectively,

C) find the total distance travelled during each stage.

D) find the average velocity over the entire period ​
Mathematics
1 answer:
Vladimir79 [104]3 years ago
5 0

Answer:

2m/s² ; - 2m/s²

25m ; 50m ; 25m

6.67 m/s²

Step-by-step explanation:

The acceleration and deceleration :

Both rates are the Same from the graph ;

According to scenario described, acceleration = 2m/s²

Deceleration occurred in equal time interval = - 2m/s

Distance covered during each stage:

Stage 1 : area of triangle

0.5 * base * height

0.5 * 5 * 10 =25 m

Stage 2: area of rectangle :

Length * breadth = 5 * 10 = 50 m

Stage 3 : area of triangle

0.5 * base * height

0.5 * 5 * 10 =25 m

Average Velocity :

Total distance / time = (25 + 50 + 25) / 15 = 100/ 15 = 6. 67 m/s

You might be interested in
A circle with center P is shown. RS and ST are tangent to circle P. What is the degree measure of angle RST
Bogdan [553]
Bro I’m rly sorry but I don’t know the answer to this
5 0
3 years ago
the height, h cm, of a table is measured s 72cm correct to the nearest centimeters. conplete the following statement to show the
gogolik [260]
Anything between 71.5 and 72.499 recurring.

Hope this helps :)
6 0
3 years ago
Which statement is true about this argument ?
MrRa [10]
D the argument is not valid because the conclusion does not follow from the premises
5 0
3 years ago
Read 2 more answers
A farm lets you pick 3 pints of raspberries for 12.00 what is the price per pint/
BaLLatris [955]

Answer:

$4

Step-by-step explanation:

I tried to make it as simple as possible.

8 0
3 years ago
Read 2 more answers
Data collected from a coffee shop indicate that the price
kozerog [31]
The answer is 1/2 I think or 1
7 0
2 years ago
Read 2 more answers
Other questions:
  • A+B-C=3pi then find sinA+sinB-sinC
    9·1 answer
  • Given the following linear function sketch the graph of the function and find the domain and range.
    13·1 answer
  • F(x) = x2 – 3x – 2 is shifted 4 units left. The result is g(x). What is g(x)?
    11·2 answers
  • Can someone answer this question please answer it correctly if it’s correct I will mark you brainliest
    5·1 answer
  • Solve |2x - 6|&lt;10<br> {x|-2&lt; x&lt; 8}<br> {x|-8&lt; x&lt; 8}<br> {x|2&lt; x&lt; 8}
    7·1 answer
  • Probability Race game
    15·2 answers
  • HELP PLZ IM BEING TIMED
    14·1 answer
  • Jeremy is shown the graph below and asked to write an equivalent equation. Jeremy writes the equation y=1+1/2x why is Jeremy's e
    15·1 answer
  • A common denominator for 6 and 8 is
    13·1 answer
  • Samira babysits for 4. 5 hours and earns $22. 50. How much does she earn per hour?<br> P
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!