The amount of power has decreased. This is most likely the result of less work being done over a longer period of time.
2 answers:
Answer:
Option (A)
Explanation:
Power is defined as the rate of doing work.
Or
The work done in unit time is defined as the power.
The formula for the power is given by
Power is a scalar quantity and its SI unit is Watt.
As the power is decreased, either work is decreased or time is increased.
So, if a less work is done in a longer period of time, the power is decreased.
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Answer:
the distance that the object is raised above its initial position is 5.625 m.
Explanation:
Given;
applied effort, E = 15 N
load lifted by the ideal pulley system, L = 16 N
distance moved by the effort, d₁ = 6 m
let the distance moved by the object = d₂
For an ideal machine, the mechanical advantage is equal to the velocity ratio of the machine.
M.A = V.R
Therefore, the distance that the object is raised above its initial position is 5.625 m.