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?

sponsored

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?

sponsored

## 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