Question

A traditional, double-seat chairlift can move1200 people in 1.00 hrs (with an average mass of 60.0 kg) up a ski hill. A high-speed quad chair can move 2400 people in 30.0 minutes up the hill. The upper terminal (top of the hill) is 100 m higher than the lower terminal (bottom of the hill).

Answer 1

Hi and welcome to QuestionCove!
What is this question asking? It seems like some information might be missing.

Answer 2

Are these the remaining parts of the question, by any chance?

1.The amount of power the quad-seat chair requires just to overcome gravity is ___x10^4 W. (Give your answer with the correct number of sig digs and do not include units)

2.An electric motor has a power rating of 1.60 kW and operates at 75% efficiency. The amount of work that it can do in 1.0 hrs is ___x10^6 J. Give your answer with the correct number of sig digs and do not include units)

Answer 3

yes

Answer 4

The equation to calculate Power (in Watts) is W/t or Work (in Joules) divided by time (in seconds). The equation to calculate Work is F*d or Force (in Newtons) multiplied by distance (in meters). You can calculate the Force required to lift a mass simply by multiplying the mass (in kilograms) by the constant of gravity (9.8 m/s/s).
You can use the above information to make calculations in order to solve the first problem.

The second question is simply a conversion question. 1.6 kW is the same as 1600 Joules per second. Take 75% of this rate and find out how many Joules can be output in 1 hour (which is 3600 seconds)

I am not able to give you direct answers, but please let me know if you need any more help. I will be happy to check you work as well, if needed.

Answer 5

This is perfect, thank you!