Energy
Kinetic energy definition:
the energy of motion.
Kinetic energy equation:
KE = 0.5 • m • v2
Applied to cart's motion:
KE=1/2(0.5847)(1.8)
= 0.52623J
Variables:
m = mass; kg
v = velocity; m/s
h = height; m
g = gravitational accerlation; 9.8m/s^2
Gravitational potential energy equation:
PEg = mgh
Applied to cart's motion:
PEg= 0.5847(9.8)(0.2159)
=1.237119954J
Law of Conservation of energy:
When the cart was sitting at the top of the ramp it had potential energy waiting to be released. As it started to roll down the ramp its potential energy converted into kinetic energy. The kinetic energy of the cart increased as it went down the ramp. Thermal energy also was a part of the energy produced by the cart because of the friction between the ramp and the wheels.
Graph of kinetic energy vs. time:
the energy of motion.
Kinetic energy equation:
KE = 0.5 • m • v2
Applied to cart's motion:
KE=1/2(0.5847)(1.8)
= 0.52623J
Variables:
m = mass; kg
v = velocity; m/s
h = height; m
g = gravitational accerlation; 9.8m/s^2
Gravitational potential energy equation:
PEg = mgh
Applied to cart's motion:
PEg= 0.5847(9.8)(0.2159)
=1.237119954J
Law of Conservation of energy:
When the cart was sitting at the top of the ramp it had potential energy waiting to be released. As it started to roll down the ramp its potential energy converted into kinetic energy. The kinetic energy of the cart increased as it went down the ramp. Thermal energy also was a part of the energy produced by the cart because of the friction between the ramp and the wheels.
Graph of kinetic energy vs. time: