668 Newtons is the average weight of one of the passengers.emilykorth said:Homework Statement
If a ski lift raises 100 passengers averaging 668 N in weight to a height of 175 m in 60 s, at constant speed, what average power is required of the force making the lift?
Homework Equations
P_instantaneous=Fv
P=W/t
W=Fd
The Attempt at a Solution
I tried to solve this by first using W=fd to find W...so 668/175=3.817
I then used P=W/t so 3.817/60
however this answer was wrong...what am I doing wrong?
Average power is the amount of energy used per unit of time. It is calculated by dividing the total work done by the total time taken.
The formula for finding average power is average power = work done / time taken. It can also be written as P = W/t, where P is average power, W is work done, and t is time taken.
Average power refers to the overall energy used over a period of time, while instantaneous power is the energy used at a specific moment. Average power takes into account fluctuations in energy usage, while instantaneous power only considers the energy used at a specific point in time.
Yes, average power can be negative. This usually occurs when work is being done against a resisting force, such as when an object is being lifted against the force of gravity. In this case, the average power would be negative because the work being done is in the opposite direction of the force being applied.
To find the average power for an object being vertically lifted, you would need to calculate the work done in lifting the object and divide it by the time taken to lift it. This would give you the average power required to lift the object against the force of gravity.