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.
To determine the weight of the man in Newtons, we can use the formula:
Weight = Mass * Acceleration due to gravity
The acceleration due to gravity is approximately 9.8 m/s². Given that the mass of the man is 100 kg, let's plug the values into the formula:
Weight = 100 kg * 9.8 m/s²
Weight = 980 Newtons.
Therefore, the weight (force exerted by his mass) of the man is 980 Newtons.