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
aleksandrvk [35]
3 years ago
14

An empty elevator has a mass of 722 kg. It moves between floors at a maximum speed of 6.00 m/s. The elevator is stopped on the 2

0th floor of the building when someone pushes the call button in the lobby (the first floor). Assuming that it takes 15.25 meters for the elevator to reach its maximum speed, and assuming constant acceleration, calculate the tension in the cable as the elevator car begins to descend (during the period of constant acceleration). Take the acceleration due to gravity to be 9.81 m/s2. Show your work.
Physics
1 answer:
FinnZ [79.3K]3 years ago
7 0

Answer:

Explanation:

The lift is going down with acceleration

Initial speed u = 0

Final speed v = 6 m/s

distance s = 15.25 m

acceleration a = ?

v² = u² + 2 a s

6² = 0 + 2 x a x 15.25

a = 1.18 m /s²

Elevator is going down with acceleration  .

mg - T = ma where T is tension in the cable .

722 x 9.8 - T = 722 x 1.18

7075.6 - T = 851.96

T = 6223.64 N .

You might be interested in
A 10.-kilogram object, starting from rest, slides down a frictionless incline with a constant acceleration of 2.0 m/sec2 for fou
aniked [119]

Answer:

C) 100N

Explanation:

Formula for calculating the Weight of an object is expressed as;

Weight = mass × acceleration due to gravity

Given

Mass of the object = 10kg

Acceleration due to gravity = 9.81m/s²

Substitute into the formula above

Weight = 10×9.81

Weight = 98.1N

Hence the approximate weight of the object is 100N

5 0
4 years ago
56 kg girl slides down the frictionless slip-n-slide at a constant speed of 35 m/s. What is the kinetic energy in Joules of the
melisa1 [442]

Answer:

93 joules

Explanation:

7 0
3 years ago
the part of the brain stem called the has been shown to related to arousal in lab animals. when this part is stimulated the anim
riadik2000 [5.3K]

Answer:

Its called PSY

Explanation: I so do not know why they named it this way but, hope i helped.

3 0
4 years ago
The distance versus time plot for a particular object shows a quadratic relationship. Which column of distance data is possible
Vladimir79 [104]
The correct choice is (C)

8 0
3 years ago
Read 2 more answers
Two balls have the same mass of 5.00 kg. Suppose that these two balls are attached to a rigid massless rod of length 2L, where L
olga_2 [115]

Answer:

Explanation:

Given

mass of balls m= 5 kg

N=45.6 rev/s

angular velocity \omega =2\pi N=286.55 rad/s

Length of Rod 2L=1.1 m

Tension in the Second half of rod

T_2=m\omega ^2(2L)=2m\omega ^2L

T_2=5\times (286.55)^2\times 1.1

T_2=451.609 kN

For First Part

T_1-T_2=m\omega ^2L

T_1=T_2+m\omega ^2L

T_1=3 m\omega ^2L

T_1=3\times 5\times (286.55)^2\times 0.55

T_1=677.41 kN

7 0
3 years ago
Other questions:
  • Write the name of animal herbivore
    6·1 answer
  • Which best describes the energy of a sound wave as it travels through a medium
    12·1 answer
  • How does gravity affect space travel?
    11·1 answer
  • What type of soil is the most permeable
    6·1 answer
  • What are the cycles of matter
    15·1 answer
  • On the planet Arrakis, a male ornithoid sings at a frequency of 1180 Hz. When flying toward her mate at a speed of 30 m/s, a fem
    13·2 answers
  • Which of the following shows the correct order of structures? A. cells organs tissues systems B. cells systems tissues organs C.
    11·2 answers
  • Why would researchers not be allowed to recreate the Little Albert experiment today?
    15·1 answer
  • Hey! I need help with this question.<br> Will give Brainlest!!<br> Thanks in advance!
    8·2 answers
  • An ear squeeze occurs when: Select one: The pressure inside the middle ear space is greater than ambient (surrounding) pressure.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!