posted by Anonymous .
A chair lift holding a 100 kg man rises 5 meters in height in 10 second time period. Ignore the weight of the chair and related machinery and answer the following: What is the weight (force exerted by his mass) of the man, in Newtons?
It depends upon whether the velocity is constant during the 10 seconds or if the skier started from a standstill.
Weight always equals Mg. There can be addional or reduced force on the seat if the chair is accelerating or decelerating. Most chair lifts maintain a constant velocity.