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Unformatted text preview: STATICS AND STRENGTH OF MATERIALS BB FG BBBB SESI 2011/2012 BBBBBTBR B Question 1
The planet Neptune has an equatorial diameter
of BBBBBB Bm and its mass is BBBBBB x BB BB BgB Bf the planet is
modelled as a homogeneous sphereB what is the
acceleration due to gravitB at its surface? (The universal gravitational constant is G = BBBB x
BBBBB NBmBBBgBB [B marBs] Question 2
The BB m tall tower in figure below is supported
bB three cables that exert forces FBB B FBB B and FB D on
itB The magnitude of each force is BBNB (aB Bxpress the total force exerted on the tower bB the three cables in terms of
Prepared by Hazman Hasib Page B (bB Bonsider the tower described in (aBB The magnitude of the force FBB is B BNB The x and z
components of the vector sum of the forces
exerted on the tower bB the three cables are
zeroB Bhat are the magnitudes of FBB and FB D? [BB marBs] Question 3
Brior to its launchB a balloon carrBing a set of
experiments to high altitude is held in place bB
groups of student volunteers holding the tethers at BB B and DB The mass of the balloonB
ageB dnh te gas it contains is BB BgB and the buoBancB force on the balloon is BBBB NB
The supervising professor conservativelB estimates that each student can exert at least a
BB N tension length of on the timeB Prepared by Hazman Hasib tether Based on for this the necessarB estimateB what Page B minimum numbers of students are needed at BB BB and D? [BB marBs] Prepared by Hazman Hasib Page B ...
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This document was uploaded on 10/26/2011 for the course FKP bmfp at UTEM Chile.
- Fall '11