PENDULUM
PE ⇄ KE · ENERGY CONSERVED
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A Swinging Pendulum
extreme
extreme
mean
PE
KE
PE + KE
= constant
Mean
KE max
Extreme
PE max
1. Energy Conversion
Extreme position: PE max, KE = 0
Mean position: KE max, PE min
2. Time Period
T = 2π √(l / g)
Longer string → longer time
3. Remember
Total energy constant
(if there is no friction)
MATRIC PHYSICS · WORK AND ENERGY · PUNJAB BOARDS
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