 mittechtv_5166.mov mittechtv_5166.wmv 
This happens when you don't

KE,V have a ....
Direct Square Relationship
Equation
KE = (˝)mv^{2} 
Relationships
KE/m
Direct
KE = (˝)mv^{2} 
KE/v?
Direct Square
Ex 1) A 60.0kg runner has 1920 joules of kinetic energy. What speed is her speed? 
Ex) A 60.0kg runner has 1920 joules of kinetic energy.
What is her speed ?
KE = (˝)mv^{2} 
m = 60.0 kg
KE = 1920 J
V = ?
1920 J=(1/2)60.0kgV^{2}
1920 J = 30V^{2}
64.0 = V^{2}
V = 8.00 m/s
Summary W, K E, PE


Then ...
ΔPE = 40 J
ŠTony Mangiacapre.,  All Rights Reserved
[Home]
Established 1995
Use any
material on this site (w/ attribution)