Recent content by mathbrain9

What would be relevant sources of error for the experiment as there appears to be a lot. I already know human tracking when the ball hits the ground, but I'm not sure of anymore. For why the calculated value is different from the actual value. This what I wrote so far: Firstly, was that...

I searched it up and I got an answer saying the coefficient of sliding friction increases with speed, over a wide range of sliding speeds, leading to higher frictional force. Also as there is higher overall friction, the work done by friction would lead to higher amounts of thermal energy...

The marble will roll.

These are the calculations they got although while making the mistake of increasing the length of the track. Through the data they made the connection that when increasing the height of the drop, leads to increases in velocity which subsequently would lead to work done by friction (heat loss)...

That is absolutely correct.

The plastic roller coaster was like the picture below. You would take the first part of the track and just lift it up at different heights not changing the total length of the track.

The lab was performed by group when I was sick so I wasn't there. On their data they changed the length of the roller coaster with each trial, when the only manipulated variable was supposed to be the height the marble was dropped on the roller coaster. So I was just wondering theoretically...

yeah by measuring the distance a marble travels after leaving the roller coaster. By using 2D horizontal projectile motion find the horizontal velocity and use it to determine kinetic energy.

It's supposed to be a experimental lab. The lab involves using a plastic roller coaster in which one end is lifted up, while the loop radius only matters in figuring out the length of the entirety of the track which is 4.22 meters.

The friction of the track on the ball during the entirety of the rollercoaster. Also there is no change to the track apart from the dop height being higher. Original formulation of the problem: Purpose: To find the following: 1. What is the relationship between the potential energy of a ball...

"Heat is the transfer of kinetic energy between molecules. If the velocity is more, the kinetic energy will be more so that the heat is more." "As an object's speed increases, the drag force from the fluid increases exponentially. For example, when you drive at high speeds, the frictional force...

On the test, I said they hit the ground simultaneously. However, that, in retrospect, doesn't seem to be the correct solution.