An object has 60 J of potential energy and 40 J of kinetic energy. Then 10 J of the potential energy is converted into kinetic e
1 answer:
The work done on the object is 10 J
Explanation:
According to the work-energy theorem, the work done by a conservative force on an object is equal to the change in kinetic energy of the object. Mathematically:
(1)
where
W is the work done
is the final kinetic energy
is the initial kinetic energy
In this problem, the object has initially
(initial potential energy)
(initial kinetic energy)
Then, 10 J of potential energy are converted into kinetic energy, so the final potential and kinetic energy are:
And by applying (1), we find the work done:
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Answer:
The work done by a particle from x = 0 to x = 2 m is 20 J.
Explanation:
A force on a particle depends on position constrained to move along the x-axis, is given by,
We need to find the work done on a particle that moves from x = 0.00 m to x = 2.00 m.
We know that the work done by a particle is given by the formula as follows :
So, the work done by a particle from x = 0 to x = 2 m is 20 J. Hence, this is the required solution.