A child pushes horizontally on a box of mass m which moves with constant speed v across a horizontal floor. The coefficient of friction between the box and the floor is µ. At what rate does the child do work on the box?

Explanation:

mas of box = m

velocity = v

coefficient of friction = μ

Force = coefficient of friction x Normal reaction

F = μmg

rate of doing work is called power, so

P = Force x velocity

P = F x v

P = μmg x v

P = μmgv

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

do you have a formula possibly