The energy input would it take to climb a ladder will be 20000 J.
<h3>What is the mechanical advantage?</h3>
Mechanical advantage is a measure of the ratio of output force to input force in a system, it is used to obtain the efficiency of the given mechanical machine.
Mechanical advantage is a measure of how much a machine multiplies the input force.
The complete question is;
"if we assume a typical efficiency of 25% for the human body how much energy input would it take to climb a ladder increasing body potential energy by 5000J"
The formula for the efficiency is;
Hence, the energy input would it take to climb a ladder will be 20000 J.
To learn more about the mechanical advantage, refer to the link;
brainly.com/question/7638820
#SPJ1
A measurement has two parts: a value and a unit. a fixed amount of something, like a centimeter (CM) of distance.
<u>Answer :</u>
In Normal view of spreadsheet, select area need to be printed. Next, click on Print Area in File menu and then select Set Print Area.
<u>Explanation:</u>
In spreadsheet, a particular area can be selected for printing by the following steps :
Step1: Open the spreadsheet where you wanted to select the area.
Step 2: Select or highlight the cells which you want to print either using the mouse or keyboard. To select using mouse click and drag the mouse across the cells you need to select. To select using keyboard, hold down CTRL key and highlight.
Step 3: Go to the page layout tab.
Step 4: In page layout tab select Print Area icon.
Step 5: Now a pop up appears with two option namely set print area and clear print area.
Step 6: Select set print area. Now the selected range of cells can printed.
Gravity is a pair of forces of attraction between every
two objects. Period !
It doesn't matter whether they're moving together, moving apart,
moving gracefully in synchrony, or at rest. The gravitational forces
of attraction between them are always there.
Answer:
-10 m/s²
Explanation:
Average acceleration is change in velocity over change in time.
a = (v − v₀) / (t − t₀)
a = (0 m/s − 20 m/s) / (2 s − 0 s)
a = -10 m/s²