Recent content by jd2

^ahhh yes! Thanks a lot, now it is making much more sense. So this is more a conceptual question..is the ball's total energy conserved as it moves from point A to point B in a pendulum type motion? And will the ball's energy be conserved in a second case where as you explained you drop a ball...

^Thanks alot! We will be using a string to hang the ball and use a pendulum type set up to test the effects, so in that case there will be no friction due to rolling and so using Drag equation you advised will be the way to go? Thanks, I will read the article on drag on wikipedia, see what I...

We know that gravity acts on the ball, so through F = ma we can find the weight which would by W(for ball)= mg. We also know equation for frictional force = μkFN. But what is then the normal force? Is there any? For energy we can use equation such as conservation of energy which states that...

We know that gravity acts on the ball, so through F = ma we can find the weight which would by W(for ball)= mg. We also know equation for frictional force = μkFN. For energy we can use equation such as conservation of energy which states that E(final) = E(initial). But looking at the problem, I...

Homework Statement For a given tennis ball: Experimentally quantify the frictional effects of air resistance on a moving ball, including data needed to compute... (1) the frictional force on the ball; (2) how much of the ball's energy is lost to air resistance as it moves a certain...