Answer this question given in the picture

A plane mirror forms a virtual image behind the mirror. The image is as far behind the mirror as the object is in front of it. A cannot see his image because the length of the mirror is too short on his side. However, he can see the objects placed at points P and Q, but cannot see the object placed at point R

Hope this helps Buddy!

~ Courtney

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

this would be about 43%