Thursday
December 18, 2014

Homework Help: physics

Posted by dawn on Wednesday, February 13, 2008 at 4:42pm.

A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. The lift is performed in three stages, each requiring a vertical distance of 7.70 m: (a) the initially stationary spelunker is accelerated to a speed of 3.80 m/s; (b) he is then lifted at the constant speed of 3.80 m/s; (c) finally he is decelerated to zero speed. How much work is done on the 62.0 kg rescue by the force lifting him during each stage?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A rescue helicopter lifts a 85.8-kg person straight up by means of a ...
physics - A rescue helicopter lifts a 85.2-kg person straight up by means of a ...
physics - A rescue helicopter is lifting a man (weight = 925 N) from a capsized ...
Physics - A rescue helicopter is lifting a man (weight = 797 N) from a capsized ...
Physics - A rescue helicopter is lifting a man (weight = 797 N) from a capsized ...
physics - A certain elevator car has mass 2200 kg and is lifted by cables driven...
Physics - A rescue helicopter lifts a 65 kg person straight up by means of a ...
Physics - A rescue helicopter lifts a 65 kg person straight up by means of a ...
Physics - A rescue helicopter lifts a 65 kg person straight up by means of a ...
physics - The concepts in this problem are similar to those in Multiple-Concept ...

Search
Members