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
kotykmax [81]
3 years ago
13

An object is thrown straight down with an initial speed of 4 m/s from a window which is 8 m above the ground. Calculate: a) The

time it takes the object to reach the ground b) Its velocity when it reaches the ground.
Physics
1 answer:
frosja888 [35]3 years ago
8 0

Answer:

0.41s

8.01m/s

Explanation:

Using the formula; v = u + at

Where;

u = initial velocity (m/s)

v = final velocity (m/s)

t = time (s)

a = acceleration (m/s²)

According to the provided information, u = 4m/s, s = 8m,

V = u + at

4 = 0 + 9.8t

4 = 9.8t

t = 0.41s

b) v = u + at

v = 4 + 9.8(0.41)

v = 4 + 4.018

v = 8.018m/s

You might be interested in
What net force acting on a 14 KG wagon produces an acceleration of 1.5 MS^2?
valentina_108 [34]

21N

Explanation:

Given parameters:

Mass of wagon = 14kg

Acceleration = 1.5m/s²

Unknown:

Net force on wagon = ?

Solution:

Force is a pull or push on a body that causes a body to change its state. It is expressed as:  

                 Force = mass  x acceleration

  Force on wagon = 14 x 1.5 = 21N

Learn more:

Force brainly.com/question/10470406

#learnwithBrainly

7 0
3 years ago
In which one or more of the following is the earth assumed to be the center of the universe?
sladkih [1.3K]
Can you put the answers, if there are any?
Once you do, Ill respond with a answer asap!
:)
4 0
3 years ago
Read 2 more answers
Two dogs are pulling on a chew toy. One dog pulls the chew toy with 64 N [E] and
PIT_PIT [208]

Answer:

Eastward, at 11 m/s^2

Explanation:

64N-31N=unbalanced force of 33N

F=ma

33N=(3kg)a

a=11m/s^2 to the East

3 0
2 years ago
What distance will a car traveling at a speed of 15 m/s cover in 300 s?
AnnZ [28]

Distance formula: d = st

d = 15 * 300

d = 4,500m

Best of Luck!

3 0
3 years ago
Which answer choice describes the noble gases
Alexxx [7]

Answer:

b

Explanation:

7 0
2 years ago
Other questions:
  • A coating is being applied to reduce the reflectivity of a pane of glass to light with a wavelength of 522 nm incident near the
    9·1 answer
  • Which scientist first made a model of the atom called the plum pudding model?
    8·1 answer
  • What rule should be used to transform a table of data to represent the
    13·1 answer
  • What minimum heat is needed to bring 100 g of water at 50 â c to the boiling point and completely boil it away? the specific hea
    15·1 answer
  • Most reactive non-metals in order?
    6·1 answer
  • How many moles of oxygen are produced when 26.5mol of aluminum oxide are decomposed
    14·1 answer
  • Physics question about density
    7·2 answers
  • Balance the following chemical equation:<br> H3PO4 + HCl → PC15 + H20
    8·1 answer
  • If your good in science please help me with this question.
    9·1 answer
  • give an example of how the law of inertia is demonstrated (a) for moving objects and (b) for objects at rest
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!