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
Archy [21]
3 years ago
7

A bullet is fired straight up from a gun with a

Physics
1 answer:
melamori03 [73]3 years ago
8 0

Answer: 815.51 m

Explanation:

This situation is related to projectile motion or parabolic motion, in which the initial velocity of the bullet has only y-component, since it was fired straight up. In addition, we are dealing with constant acceleration (due gravity), therefore the following equations will be useful to solve this problem:

V=V_{o}+gt (1)

V^{2}=V_{o}^{2}+2gy (2)

Where:

V is the final velocity of the bullet

V_{o}=152 m/s is the initial velocity of the bullet

g=-9.8 m/s^{2} is the acceleration due gravity, always directed downwards

t=6.9 s is the time

y is the vertical position of the bullet at t=6.9 s

Let's begin by finding V from (1):

V=152 m/s-9.8 m/s^{2}(6.9 s) (3)

V=84.38 m/s (4)

Now we have to substitute (4) in (2):

(84.38 m/s)^{2}=(152 m/s)^{2}-2(9.8 m/s^{2})y (5)

Isolating y:

y=815.511 m This is the displacement  of the bullet after 6.9 s

You might be interested in
How can u tell matched forces act on objects?
mamaluj [8]

Answer:If an object's speed changes, or if it changes the direction it's moving in,

then there must be forces acting on it. There is no other way for any of

these things to happen.

Once in a while, there may be a group of forces (two or more) acting on

an object, and the group of forces may turn out to be "balanced".  When

that happens, the object's speed will remain constant, and ... if the speed

is not zero ... it will continue moving in a straight line.  In that case, it's not

possible to tell by looking at it whether there are any forces acting on it

3 0
3 years ago
Que significa gobernar​
kow [346]

Answer: conducir la política, acciones y asuntos de (un estado, organización o personas).

7 0
3 years ago
In preparation for an electrophoresis procedure, enzymes are added to DNA in order to
lapo4ka [179]
It is 2.) Cut the DNA into fragments
3 0
3 years ago
Calculate the energy needed to change 200.0 g of ice from -20.0°C to water at 35.0°C.
oksano4ka [1.4K]

it's C  24.94KCAL

YOUR WELCOMEEEEEE


3 0
3 years ago
A 55.0-g piece of copper wire is heated, and the temperature of the wire changes from 19.0°C to 86.0°C. The amount of heat absor
Alinara [238K]
The specific heat of a metal or any element or compound can be determined using the formula Cp = delta H / delta T / mass. delta pertains to change. That is change in enthalpy and change in temperature. From the given data, Cp is equal to 343 cal per (86-19) c per 55 grams. This is equal to 0.093 cal / g deg. Celsius
4 0
3 years ago
Other questions:
  • 9.5 g bullet has a speed of 1.5 km/s what is the kinetic energy of the bullet
    12·2 answers
  • Ugygyguygugugyub bbhjhghjgyg (bhjbgj yu
    9·1 answer
  • A girl pulls a sled with a force of 15 N over a distance of 3 m. What is the kinetic energy of the sled after she pulls it? Assu
    15·2 answers
  • Blood pressure is usually measured by wrapping a closed air-filled jacket equipped with a pressure gage around the upper arm of
    15·1 answer
  • 23. Two spheres, with radii of R, are in contact with each other and attract each other with a force of F. If the radii of both
    10·1 answer
  • A raised plaster cover (often called a plaster ring or mud ring) is permitted to increase the maximum number of conductors permi
    13·1 answer
  • Newspapers often talk about an energy crisis-about running out of certain energy sources in the not-so-distant future. About whi
    13·1 answer
  • this is an area where two tectonic plates move towards each other with one going under the other plate?
    11·1 answer
  • 20 POINTS: <br> Why does the initial hill of a roller coaster need to be steep?
    15·2 answers
  • Which of the following produces a physical change ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!