SHOW WORKING Jon Snow gets onto the lift at the top of the wall and begins...
SHOW WORKING
Jon Snow gets onto the lift at the top of the wall and begins to descend down to Castle Black. Part of the way down, the cables holding the lift begin to slip. The combined mass of Snow and the lift is 250 kg. The lift now accelerates downward with an acceleration of 2g/5, where g is the acceleration of gravity. If the lift travels 300 m before crashing, answer the following questions:
a) How much work is done by the tension in the lift cables?
b) How much work is done by the force of gravity?
c) If the lift was going 1 m/s downward when the cable began to slip, at what velocity does the lift crash into the ground?
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Jon Snow gets onto the lift at the top of the wall and begins...
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