Is this correct?

Gabriella weighs 450 N. She climbs a flight of stairs to a height of 3 m. It takes her 5 seconds.
How much work does Gabriella do when she climbs the stairs?
Ans- 1,350 J.
What I did was 450*3
Can someone check this? Thanks
-MC

3 answers

correct.

Thanks
-MC

No the work done is mgl I.e. u did not take gravity into consideration..so it is 450*9.8*3=44129.4 J