2. An elevator in on the thirtieth floor of an office building when supporting cables shears. The elevator drops vertically to the ground where several springs absorb the impact of the elevator. The elevator mass is 2500 kg and it is 100 m. above the ground. Determine: a) the potential energy of the elevator before its fall, b) the velocity and kinetic energy the instant before the impact. Ans. a) 2450 kJ, b) 44.3 m/s,2450 kJ
2. An elevator in on the thirtieth floor of an office building when supporting cables shears. The elevator drops vertically to the ground where several springs absorb the impact of the elevator. The elevator mass is 2500 kg and it is 100 m. above the ground. Determine: a) the potential energy of the elevator before its fall, b) the velocity and kinetic energy the instant before the impact. Ans. a) 2450 kJ, b) 44.3 m/s,2450 kJ
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Transcribed Image Text:2. An elevator in on the thirtieth floor of an office building when supporting cables shears.
The elevator drops vertically to the ground where several springs absorb the impact of the
elevator. The elevator mass is 2500 kg and it is 100 m. above the ground. Determine: a)
the potential energy of the elevator before its fall, b) the velocity and kinetic energy the
instant before the impact.
Ans. a) 2450 kJ, b) 44.3 m/s,2450 kJ
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