Once you have watered the entire video, answer the graded follow-up questions on

Question

Once you have watered the entire video, answer the graded follow-up questions on the right You can watch the video again at any point. The video 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 10 m/s^2 for the magnitude of the acceleration of gravity. Part B This question will be shown after you complete previous questions(s).

Explanation / Answer

U = mgh

where U is gravitational potential energy near the earth's surface, m is the mass of the object, g is the magnitude of the gravitational acceleration, and h is the height above the ground.

=> 600*4 = m*10*4

=> m = 60 kg

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