Recent content by HeadHurts

Yes i know because its inelastic. Though i need to find out how long it will take for an inelastic model to come to rest.

help please i need to find out how long it will take before the cradle comes to a rest. will this help? T= 2pi(sqrtL/g)

So for kinetic energy. The first ball. Ek=0.5x0.045x1.685^2 Ek=0.063833 The second ball. Ek=0.5x0.045x1.46833 Ek=0.0451 but i still don't know how i can find the time to when the cradle comes to rest.

We were told to make our own project, i chose to base mine on the conservation of momentum and used the pendulum. Though I am kind of stuck, i need more things to write about and more equations i can calculate using the pedulum. all i have so far is E=mgh H1=0.145m (90dgrs) M=0.045kg...

still can't find one simple enough... really need your help guys. pendulums would be alright. (momentum/conservation etc)

Hi guys, first time in this forum. seems legit. I'm in year 12, i have to find or make a EPI (prac) to do with one of these topics. 1. Co-efficient of friction between different surfaces. 2. Strength of nylon/cotton/steel/tin string. 3. Projectile motion. 4. Bending of a beam. 5. The...