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
Naddika [18.5K]
2 years ago
8

How do the individual forces compare when the rider experiences a sensation being lighter than his normal weight ? What is the a

cceleration direction when this occurs ?
Physics
1 answer:
shusha [124]2 years ago
6 0

Answer:

When the elevator is accelerating downward, the person feels lighter due to the downward normal force being less than the person's weight.

Explanation:

A person riding in an elevator subjected to a series of unbalanced forces depending on the direction the elevator is travelling.

Two forces are acting on the person; the force of gravity and the upward normal force from the elevator.

When the elevator is going upwards with acceleration a, the person feels heavier than his normal weight, due to the upward normal force being greater than the person's weight. N = mg + ma

When the elevator is moving downwards with acceleration a, the person feels lighter due to the downward normal force being less than the person's weight. N = mg - ma

However, when the elevator is moving up or down at constant velocity ie. acceleration a = 0, the person experience a normal force equal to weight. N = mg

When the elevator is moving downwards with acceleration a = g, the person experiences weightlessness. N = (mg - mg) = 0

You might be interested in
The type of energy possessed by a fluid above its base level is
zysi [14]
Potential energy due to gravity
3 0
3 years ago
Read 2 more answers
Help me quick!!! please!!
Rudik [331]

Answer:

39.240 W

Explanation:

Let's start by calculating the work done by the engine. We can assume that it is the same work done by the weight of the object to bring it from 40m to the surface: as much energy it takes to bring it up, the same ammount it takes to bring it down. Said work is w= \vec F\cdot \vec{h} = mg h = 1000 \times 9.81\times 40 = 392.400 J

At this point we can simply apply the definition of power, that is P = \frac wt, to get the power of the engine is 39.240 W

4 0
2 years ago
Read 2 more answers
Waxing or waning moon?
Dennis_Churaev [7]

Answer:

waning gibbious

Explanation:

7 0
3 years ago
A worker pushes a box across the floor to the right at a constant speed with a force of 25N. What can you conclude about the box
kotykmax [81]

Answer:

C. Friction between the box and the floor is 25N to the left

Explanation:

7 0
2 years ago
Read 2 more answers
Scientist have been able to determine the composition of Earth's layers by:
Pie
D is the correct answer
4 0
3 years ago
Other questions:
  • How many microphones are in a megaphone?
    10·1 answer
  • Until a train is a safe distance from the station, it must travel at 5 m/s. Once the train is on open track, it can speed up
    13·1 answer
  • An immersion heater of power J= 500 W is used to heat water in a bowl. After 2 minutes, the temperature increases from T1= 85°C
    11·1 answer
  • What is a time paradox?
    14·2 answers
  • Assume that you have a meter stick balanced on a pivot, and pile of additional masses that you can hang on the meter stick.
    7·1 answer
  • Starting over, so here's some points! Take em<br> ~Jayden
    10·2 answers
  • What is the least number of forces required to stretch a spring?
    7·1 answer
  • A machine has mechanical advantages 2, what does it means.<br> plzz tell me the ans
    8·1 answer
  • HELP!!! I HAVE NO IDEA!!!!!!!!!!!!!
    8·1 answer
  • A long time after the switch is closed, what is the voltage across the capacitor in terms of the supply voltage?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!