# Work and Mass

## Homework Statement

A total work of 250 J is done as a guy pulls a box from the ground up to the attic, 10.0 m above the ground. What is the mass of the box?

W=250J
h=10.0m
g=9.81m/s^2
m=?

W=m*g*h

## The Attempt at a Solution

m=$\frac{g*h}{W}$=$\frac{10*9.81}{250}$=2.55kg

W=m*g*h

## The Attempt at a Solution

m=$\frac{g*h}{W}$=$\frac{10*9.81}{250}$=2.55kg

check the equation you have written, although the answer is right.

since W=m*g*h
that means m=$\frac{W}{g*h}$