- #1
Jesse Niekamp
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Homework Statement
A 30kg pallet falls from a height of 2m onto a protective cover. The cover has an area of 269m² and an overall thickness of 10.9mm.
a. What is the force/pressure on the cover?
b. What is the bending stress on the cover?
Homework Equations
F=ma
bending stress = mc/I
P=F/A
Vf^2=Vi^2+2ad
KE=mgh
Wnet=1/2m(Vf)^2-1/2m(Vi)^2
The Attempt at a Solution
F=ma=(30)(9.81)=294.3N
P=F/A=294.3/269=1.094Pa
Vf^2=0+2(9.81)(2)...Vf=6.264m/s
KE=mgh=(30)(9.81)(2)=588J