History Bookmars Window Help season mrst eringprysits. com Sping 2015, PHYS 3113

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History Bookmars Window Help season mrst eringprysits. com Sping 2015, PHYS 3113/1113, Sections A BS- w ceuchd Conserveton of Energy Ranking Tass Six pendulums of various masses m are released from various haights h sbove a tabletop, as shown in the Sgures below All the pendulums have he same length and are mounted such that at tre verical posiion heir lowest points are the height of the tabielop and just do nof stike the labilop when released. Assume thet the sine of each bob is negligibla. Part A Rank each pendulum on the basis of ts intial grewitational potenial enangy (before being relessed) relative to the tabletop Rank fros largest to smalest To rank items as equivalent, overlap them A-45 cm b-15cm -8 kg argest MacBook Air 3 4. 5 6 7 8 9

Explanation / Answer

lets assume the potential energy at the table top to be zero (reference point)

so, 1) P1=mgh=0.6g

2) P2=1.35g

3) P3=1.2g

4) P4=1.2g

5) P5=1.2g

6) P6=0.6g

so, order 2>3=4=5>1=6

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