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
Leokris [45]
3 years ago
9

A 60.0-kg person is in an elevator with a mass of 2000 kg. The elevator moves vertically up through a distance of 24.0 m with a

constant speed of 4.00 m/s. How much work is done on this elevator system? Use g=10.0m/s^2.
Physics
1 answer:
kati45 [8]3 years ago
6 0

The mass of the (elevator + person) is (2,000 kg + 60 kg) = 2,060 kg .

The weight is (mass x gravity) = (2,060 x 10) = 20,600 newtons

Work = (force x distance) = (20,600 newtons x 24m) = <em>494,400 joules</em>

The speed, acceleration, and how much time it takes don't make any
difference, unless you want the average power during the lift.

         Power = (work)/(time) =
           494,000 J / (24/4 m) =
           494,000 J / 6 sec = <em><u>82,400 watts</u></em>      wow !
You might be interested in
A student releases a ball from a height of 100 cm above the ground. It bounces to a height of 80 cm. Answer the following questi
Zepler [3.9K]

if α = 90°, then the formula simplifies to: hmax = h + V₀² / (2 * g) and the time of flight is the longest. ...

if α = 45°, then the equation may be written as: ...

if α = 0°, then vertical velocity is equal to 0 (Vy = 0), and that's the case of horizontal projectile motion.

4 0
2 years ago
How do you think the switch controls the flow of current to the light?
nadezda [96]

Answer:

A switch interrupts the flow of current in a circuit.

Explanation:

3 0
1 year ago
The distance between two cities is 185miles.Express the distance in kilometers.
murzikaleks [220]
297.729km :-) hope this helps
8 0
3 years ago
A Describe and explain what
melomori [17]

Answer:

The extension is directly proportional to the force applied.

ex: if the force is doubled, the extension doubles. This works until the limit of proportionality is exceeded.

Hope this helped~

Explanation:

3 0
2 years ago
Read 2 more answers
7. The S.l. unit for force is<br> A. kg<br> C. m/s<br> B. m/s2<br> D. N
netineya [11]
D.N(Newton) this is the S.I unit for force
5 0
3 years ago
Other questions:
  • Pretend a system is having Transverse waves. And those transverse waves on a string have wave speed 8.00 m/s amplitude 0.0700m a
    15·1 answer
  • If two stars are the same distance from us and they both appear to be the same
    12·2 answers
  • Why is copper so widely sought world market and new york mercantile exchange?
    10·2 answers
  • Dr. Alley has helped drill many holes in ice sheets. Special tools can be lowered down the holes on cables, and tracked to learn
    11·1 answer
  • What type of cloud is highest in the sky?
    12·2 answers
  • If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, the ball with the m
    7·1 answer
  • Please help its for science
    12·2 answers
  • What is the measure of minor arc AB?
    10·1 answer
  • a busis moving with the initial velocity 10m/s . after 4 seconds, the velocity becomes 30m/s . find the acceleration produce by
    8·1 answer
  • Which force is responsible for determining the shapes of galaxies?.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!