A 4 kg mass is in free fall. What is the velocity of the mass after 11 seconds
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So, the work was done by that hot air-balloon is <u>30,000 J or 30 kJ</u>.
<h3>Introduction</h3>Hi ! In this question, I will help you. <u>Work is the amount of force exerted to cause an object to move a certain distance from its starting point</u>. In physics, the amount of work will be proportional to the increase in force and increase in displacement. Amount of work can be calculated by this equation :
With the following condition :
- W = work (J)
- F = force (N)
- s = shift or displacement (m)
Now, the s (displacement) can be written as ∆h (altitude change) because the object move to vertical line. The formula can also be changed to:
With the following condition :
- W = work (J)
- F = force (N)
= change of altitude (m)
If an object has mass, then the object will also be affected by gravity. Always remember that F = m × g. So that :
With the following condition :
- W = work (J)
- m = mass of the object (kg)
- g = acceleration of the gravity (m/s²)
We know that :
- F = force = 100 N
What was asked :
- W = work = ... J
Step by step :
So, the work was done by that hot air-balloon is 30,000 J or 30 kJ.
<h3>See More :</h3>- Work that he had done to lift object brainly.com/question/26341717
- Converting work to potential energy brainly.com/question/26487284