Question

A wall acted upon by a force of 20N does not move. The work done on the wall in this process is

Answer 1

0

Explanation:

A wall on which an amount of force is acted upon and does not move suggests that no work has been done on the wall.

 Work done is the force applied on a body to move it through a particular distance in the direction of the force.

For work to be done:

• Force must be applied to a body or on it
• Distance must be moved in the direction of the applied force

 

               Work done  = force  x distance moved.

Given parameters:

 force = 20N

  distance = 0

     Work done = 20 x 0 = 0J

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Work done brainly.com/question/9100769

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Answer 2

The work done on the wall is zero

Explanation:

The work done by a force on an object is given by the equation:

$W=Fd cos \theta$

where :

F is the magnitude of the force

d is the displacement

$\theta$ is the angle between the direction of the force and the displacement

In this problem, we have:

F = 20 N is the force applied on the wall

d = 0 is the displacement, since the wall does not move

Therefore, we immediately see that regardless of the angle, the work done is zero:

$W=F(0)cos \theta = 0$

In fact, work is done only if the displacement is non-zero.

Learn more about work:

brainly.com/question/6763771

brainly.com/question/6443626

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