A pendulum bob has its maximum speed as 5m/s at lowest position o. Calculate the height of the Bob above o,where its velocity is zero.

2 answers

1/2 m v^2 = m g h

h = v^2 / (2 g)
Vi=5.0m/s upwarrd
vf=0.0m/s
a=-9.8m/s/s
d=?

Vf2=Vi2+2ad

d=(Vf2-Vi2)÷2a
=25÷(2x9.8)=1.27m