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
VashaNatasha [74]
4 years ago
6

A net force of 3000 N is accelerating a 1200 kg elevator upward. If the elevator starts from rest, how long will it take to trav

el up 15 m?
Physics
1 answer:
alexdok [17]4 years ago
5 0

F = net force acting on the elevator in upward direction = 3000 N

m = mass of the elevator = 1200 kg

a = acceleration of the elevator = ?

Acceleration of the elevator is given as

a = F/m

a = 3000/1200

a = 2.5 m/s²

v₀ = initial velocity of the elevator = 0 m/s

Y = displacement of the elevator = 15 m

t = time taken

Using the kinematics equation

Y = v₀ t + (0.5) a t²

15 = (0) t + (0.5) (2.5) t²

t = 3.5 sec

You might be interested in
Roberta is going over the form with a patient; the form includes such information as the name of the patient, the
velikii [3]

Answer:

encounter form

7 0
4 years ago
What is terminal speed? When a skydiver has reached terminal speed, what is the are resistance equal to? What is the skydiver’s
Alla [95]
Terminal speed is the maximum speed that a falling object can reach and is based on aerodynamic resistance. In a vacuum, an object falling toward a planet as a result of gravity will continue to accelerate until it hits the ground.

However, if the object is falling through an atmosphere, such as on earth, then it will accelerate up to the point that the aerodynamic resistance cancels the downward force due to gravity, and it travels at a constant maximum speed, called the terminal velocity. At this point, resistance is equal to acceleration due to gravity. At terminal velocity, the skydiver's acceleration is zero.
6 0
4 years ago
Read 2 more answers
Why the life of a tornado chaser would be exciting and dangerous.
Rina8888 [55]

Explanation:

Tornado chasers are meteorologist who study and predict weather pattern. This helps them in forecasting time and location of the storm. Never the less tornado's and hurricane's can be deadly as they are powerful wind and comes with a little warning. Storm chaser are in path of storm placing scientific equipment's and hoping to get some reading and then quickly they have to retreat themselves to safe place as even a small delay could cost them their lives. Thus,we can say that life of a tornado chaser would be exciting and dangerous.

8 0
4 years ago
True or False: Litmus paper turns blue in bases and red in acids. <br>True <br>False​
lutik1710 [3]
False because bases turn red litmus paper to blue and acids turn blue litmus paper red
8 0
1 year ago
Please I need help!!
Aleonysh [2.5K]

Answer: A

Explanation:

3 0
2 years ago
Other questions:
  • Why do you suppose this section struck such a deep chord
    10·1 answer
  • Which is true about refraction from one material into a second material with a greater index of refraction when the incident ang
    5·1 answer
  • 3. In a demonstration learning activity,
    5·1 answer
  • Watching a Helicopter Take Off At a distance of 52 ft from the pad, a man observes a helicopter taking off from a heliport. If t
    10·1 answer
  • ¿cual es la velocidad de un haz de electrones que marchan sin desviarse cuando pasan a traves de un campo magnetico perpendicula
    7·1 answer
  • in a paragraph explain how electncity is generated at a power plant. please don't answer if you don't know ​
    12·1 answer
  • An object takes 2.8 years to orbit the Sun. What is its average distance (in AU) from the Sun?
    8·1 answer
  • Which of the following statements best summarizes the main points of the passage?
    5·1 answer
  • A closed system:
    13·1 answer
  • A nonconducting ring of radius R is uniformly charged with a total positive charge q. The ring rotates at a constant angular spe
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!