A pendulum changes height by 61.0 cm from one end of its swing to its lowest. What is the speed of the pendulum bob at the lowest point?
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A pendulum changes height by 61.0 cm from one end of its swing to its lowest. What is the speed of the pendulum bob at the lowest point?
Answers
The PE at max height where V = 0 = KE at lowest height where h = 0
mgh = ½mV²
2gh = V² = 19.6*0.61 = 11.96
V = √11.96 = 3.46m/s