MEASUREMENTS(10 pts)

MASS OF STRUCTURE

MASS OF PAPER

MASS OF LIGHTWEIGHT BOOK

MASS OF PHYSICS BOOK

HEIGHT OF STRUCTURE

LENGTH OF STRUCTURE

WIDTH OF STRUCTURE

_____________ g

_____________ g

_____________ g

_____________ g

________ cm

________ cm

________ cm

------------------------------------------------------------------------------ REPORT QUESTIONS(20 pts)

1)Calculate the weight of the object (or objects) held just prior to structural failure. (2 pts)

2)Calculate the normal force exerted by the structure just prior to structural failure. (2 pts)

3)Calculate the efficiency of your structure by using the following formula:(4 pts)