A job is done slowly and an identical job is done quickly then they require same amount of work, but different amounts of power.
Answer: Option B
<u>Explanation:
</u>
Work done is the amount of force required to displace an object from its original position. So as force depends on mass of the object. The work will remain constant for doing a particular job related to same object. But power defines the work done per unit time.
So if power is increased for a given work means the time required to do that work is reduced. So if a particular work has to be performed on a same object then by manipulating the power we can change the time taken to complete that job.
So in this case for the identical job, one is completed slowly while other has been done quickly. This indicates that they required same amount of work as the kind of job is same but different amount of power depending on which the work is done fast or slowly.
Option A. A force does work on an object if a component of the force is is parallel to the displacement of the object.
<h3>Work done by force</h3>
The force applied to an object to displace it from a given point to another point is known as work done on the object.
W = Fd cosθ
where;
- f is the magnitude of applied force
- d is the displacement of the object.
- θ is the angle between the applied force and displacement.
Thus, A force does work on an object if a component of the force is is parallel to the displacement of the object.
Learn more about work done here:brainly.com/question/8119756
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True because friction happens when two things are rubbed against each other and it creates force and sliding something vigorously against something else can create force.
Your answer is A. Vibrate in place