Roth+Lab+14

Lab 14 Ballistic Pendulum

vB= (square root (2gh) ) (mB+mP))/mB g= 9.8m/s Degree Average = (21+22.5+23.5+25+22)/5= 22.8 degrees h= .233- .233cos22.8= .018 mB= .008kg mP= .080 kg vB= (square root(2(9.8)(.018)) (.008+.080))/ .008 vB= 6.53 m/s

dy=.857 m dy=(1/2)at^2 .857= .5 (9.8) t^2 .857= 4.9 t^2 .175= t^2 .418s=t

dx= 3, v= dy/t v= 3/.418= 7.17

Percent Error= l (actual-experimental)/ actual l = (7.17-6.53)/ 7.17 = .0829 8.29% error