Stuck on Elevator Weight - Analyzing the Readings

AI Thread Summary
When an elevator moves upward at a constant velocity, the scale reads 600 N, indicating the person's weight. As the elevator slows down to a stop, the scale will register a value less than 600 N due to the reduction in acceleration. When the elevator is stopped, the scale will show exactly 600 N, reflecting the person's actual weight. During the descent, as the elevator accelerates downward, the scale will register a value less than 600 N again. The forces acting on the person include gravitational force and the normal force from the scale, which changes based on the elevator's acceleration.
hatingphysics
Messages
14
Reaction score
0
:confused: I am having trouble answering this question...what is the answer?! HELP


Suppose you are in an elevator that is moving upward with a constant velocity. A scale inside the elevator shows your weight to be 600 N. (a) Does the scale register a value that is greater than, less than, or equal to 600 N during the time when the elevator slows down as it comes to a stop? (b) What is the reading when the elevator is stopped? (c) How does the value registered on the scale compare to 600 N during the time when the elevator picks up speed again on its way back down? Give your reasoning in each case.
 
Physics news on Phys.org
Draw a free body diagram. What forces are acting on the person?
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Elevator Motion and Bathroom Scale Readings
Replies
2
Views
2K
Understanding Sign Conventions in Elevator Tension Problems
Replies
6
Views
3K
What is the difference between apparent weight and true weight in elevators?
Replies
12
Views
3K
Apparent weight of a man standing in an elevator
Replies
24
Views
7K
Solving the Elevator Problem: Weight Measurement
Replies
5
Views
12K
Forces, elevator, acceleration -- I have the answer, just explain it....
Replies
2
Views
12K
Scale Reading in Elevator: Mass, Acceleration, and Velocity Calculations
Replies
6
Views
3K
Weight in an elevator? Free body diagrams
Replies
1
Views
3K
Determine the elevator's acceleration
Replies
33
Views
4K
I Mass of Backpack in Moving Elevator
Replies
10
Views
2K

Hot Threads

Recent Insights

Back
Top