Question

As a box is pushed 30. meters across a horizontal floor by a constant horizontal force of 25 newtons, the kinetic energy of the box increases by 300. Joules. How much total internal energy is produced during this process

Answer 1

The value of the total internal energy produced during this process is 450 J.

Step-by-step explanation:

The expression for the work done in terms of force and displacement is as follows;

W=Fs

Here, W is the work done, F is applied force and s is the displacement.

Calculate the work done.

Put F= 25 N and s= 30 m in the above expression.

W=(25)(30)

W= 750 J

The expression for the work done in terms of the change in the kinetic energy from work energy theorem is as follows;

`W=\Delta KE`

Here,
`\Delta KE` is the change in the kinetic energy.

Total internal energy= work done - kinetic energy

Put work done= 750 J and kinetic energy= 300 J.

Total internal energy=750 - 300

= 450 J

The remaining energy will get transformed into internal energy.

Therefore, the value of the total internal energy produced is 450 J.