Question

HELP!!
Im really lost on my Conservation of Energy lab.
We dropped a ball from different heights and did 6 trials for each height. We recorded the velocity of the ball right before it hit the floor.
Its now asking me to use this information to calculate the Friction, Potention Energy and Kinetic Energy...
How do I do this?

Answer 1

potential energy = \(mgh\)

where
m: mass of the ball
g: acceleration due to gravity
h: height from which the ball was dropped

calculate that.

just before the ball is dropped, all the potential energy is converted to kinetic energy, and some energy is lost due to friction.

use the formula
kinetic energy = \(\frac{1}{2}mv^2\)
v is the velocity you recorded.

now you have kinetic energy, and potential energy,

their difference is the energy lost due to friction
energy lost due to friction= potential energy - kinetic energy

Answer 2

One more question, How could I cslculate the friction