An object is placed in front of a plane mirror. the image will
1- virtual
2-real

1- Virtual

Explanation:

The image generated by a mirror is always a virtual image, this means that the light rays that your eyes perceive do not come from the mirror, a virtual image is an image generated by a device that generates an object at a different location than it actually is and makes it look like the light rays are coming from that other location.

f=ma newton

f=100x2.5=250n

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this