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**1. The problem statement, all variables and given/known data**

I am planning a lab where I am investigating the (inversely proportional) relationship between the velocity at which an elevator is moving and the mass inside an elevator.

Method:

1. Estimating distance the elevator is going to travel.

2. Have a mass of 100 kg inside the elevator (this is later increased)

3. Measuring the time it taken to go from the bottom to the top floor using a stopwatch

4. Recording the time.

5. Repeat for larger masses

1. I am wondering what would be an appropriate graph to plot using the data obtained.

2. Should I put uncertainty approximations in the table of results? (ever though I am not actually going to carry out the experiment)

**2. Relevant equations**

v = s/t

v = velocity (m/s)

s = displacement (m)

t = time (s)

v = k/m

Where v = velocity (m/s)

k = the "lift constant" (something I came up with) (m kg/s)

m = mass inside the elevator (kg)

**3. The attempt at a solution**

1. I think I should graph v on the y-axis and 1/m on the x-axis and then find the slope, but I'm not sure if that will be appropriate.

(dy/dx = dv/dm ?)

2. No?