Problem: Look at this applet. It shows an elevator with a small initial upward velocity being raised by a cable. The tension in the cable is constant. The energy bar graphs are marked in intervals of 600 J. Part A What is the mass m of the elevator? Use g=10m/s2 for the magnitude of the acceleration of gravity. Express your answer in kilograms to two significant figures.

FREE Expert Solution

From potential energy, U  = mgh, the mass of the elevator is:

m=Ugh

The height from the earth's surface can be obtained by:

h=y4=44

View Complete Written Solution
Problem Details

Look at this applet. It shows an elevator with a small initial upward velocity being raised by a cable. The tension in the cable is constant. The energy bar graphs are marked in intervals of 600 J. 

Part A What is the mass m of the elevator? Use g=10m/s2 for the magnitude of the acceleration of gravity. Express your answer in kilograms to two significant figures.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Vertical Forces & Acceleration concept. You can view video lessons to learn Vertical Forces & Acceleration. Or if you need more Vertical Forces & Acceleration practice, you can also practice Vertical Forces & Acceleration practice problems.