Posted by : Unknown
martes, 22 de mayo de 2012
a=3 m/s² P=2kgf x=4m
m=2kgf÷9.8 m/s^2 = 0.2kg
t^2=2x÷a=8m÷3m/s^2=2.66s
F=0.2Kg×3m/s^2=0.6N
w=0.6N×4m=2.4J
Po=2400J÷51s=47watts
V=4m÷51s=0.078m/s
Ec=((0.2Kg)×(0.078m/s)^2)/2=6.084E-4 J