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
OlgaM077 [116]
3 years ago
8

A car going 72.0 km/h (20.0 m/s) slows down to 36.0 km/h (10.0 m/s) in 5.00 seconds. Calculate the acceleration in

Mathematics
1 answer:
Vlada [557]3 years ago
6 0

Answer:

-2 m/s^2

Step-by-step explanation:

Just as you would calculate the velocity when a body moves from point A to point B in a time T, we are going to calculate the acceleration as the difference of the velocities (final - initial) and divide it by the time it took:

Velocity_final = 10 m/s

Velocity_initial = 20 m/s

Time = 5 s

acceleration = (Velocity_final -  Velocity_inital)/Time

                     = (10 m/s - 20 m/s)/5 s

                     = (-10 m/s) / 5s

                     = -2 m/s^2

The acceleration in m/s^2 is -2

You might be interested in
What is 10c+9-7c.....?
Vika [28.1K]

Answer:

17c + 9 = 10c + 9 - 7c

COMBINE LIKE TERMS

10c + 7c = 17c

9 IS NOT A LIKE TERM, SO WE LEAVE IT ALONE

7 0
3 years ago
The area of this parallelogram is 120 ft2 find the value of h
Free_Kalibri [48]

Answer: 60

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Using the slope formula, determine the slope of the two points.
Lelechka [254]
The slope formula is is rise over run or y2-y1/x2-x1

If you plug in those numbers you will get

(-1)-(-4)
———
1-(-2)

Simplify it and you get

3
— or 1
3

So the slope is 1
5 0
3 years ago
1. A snack bar sells two sizes of snack packs. A large snack pack is $8, and a
natali 33 [55]

answer

system : 8L+ 4S = 120

               L + S = 20

There are 10 small packs and 10 large packs

step by step answer :

to form the two systems, we have to determine the catagories of the 2 equations : one for money and one for the no of packs

after forming the two equations we simply put the numbers in the same order put above on the calculator ( mode 5:1) and the calaculator will answer it in seconds . 10 small packs and 10 large packs.

To  check your answer , substitute the letters with their values and if both equations gave you the same value at the end then your answer is correct!  

7 0
3 years ago
In ΔRST, r = 5 cm, t = 6.8 cm and ∠T=23°. Find all possible values of ∠R, to the nearest 10th of a degree.
8090 [49]

Answer:

\angle r=16.696

Step-by-step explanation:

From the question we are told that:

Dimension

r = 5 cm

t = 6.8 cm

∠T=23°

Generally the equation of sine rule i is mathematically given by

\frac{sin \angle r}{R} =\frac{sin \angle t}{T}

\frac{ \angle r}{1} =sin^-^1(\frac{sin \angle t*R}{T})

\frac{ \angle r}{1} =sin^-^1(\frac{sin23*5}{6.8})

\angle r=16.696

3 0
3 years ago
Other questions:
  • The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels. On day, she counts 15 se
    14·2 answers
  • The value of a collector’s item is expected to increase exponentially each year. the item is purchased for $500. after 2 years,
    5·1 answer
  • The value of x + x(xx) when x = 2 is:<br><br> (a) 10, (b) 16, (c) 18, (d) 36, (e) 64
    11·2 answers
  • Find the equation of a line parallel to x=−5that contains the point (−3,−1)
    13·1 answer
  • Can someone please tell me the aswer​
    11·1 answer
  • What is the slope-intercept equation of the line below? y-intercept=(0,2) slop=-1/4
    5·1 answer
  • Kyle earned 4 times as much as Ken last summer. If they earned a total of $750, how much did they each earn?
    5·1 answer
  • Find the equation of the line between the points (10, – 5) and ( - 2,0).
    15·1 answer
  • Daniel wants to do 312 practice problems to prepare for an exam. If he wants to do approximately the same number of problems eac
    11·1 answer
  • Find the difference of 24.7 and 20.5​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!