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Thanks guys, I understand why it can't be right now.

Greetings, I've been learning the mathematics of classical physics from a website called "A physiscs teacher" (http://aphysicsteacher.blogspot.com/search/label/acceleration). While looking through the equations on the acceleration i think i found a mistake made by the website. A bus starts...

To get the answer i came up with, I first found the relative velocity, 20-5=15, and then i divided the mass of the heavier Ball B by A to find the multiple difference in mass, 30/10=3, i then divided the relative velocity by this difference to get what i believed to be the change in...

The collision is perfectly elastic and all momentum is conversed

This is how i did it 1. I assigned both the ruler and rock with masses of 100 grams. 2. I then divided the ruler into 10 equal size pieces each 0.1m long and 10 grams in mass. 3. Then i placed the triangle at 0.25m inside the ruler. 4. Then i multipled each piece of ruler by its distance...

Just to point out, I am still in secondary school so i may not be the most reliable person to answer this but i think the answer is b. between 0.25-0.5

I think I just figured the answer out, Ball A: 5 Ball B: 10 Could someone please confirm this for me.

Two balls are moving through space in the same direction, the balls have differiential masses and velocitys. Ball A is behind Ball B but is also moving faster so will soon collide with it, my question is "How fast will both balls be moving after they have collided?" Ball A: mass=10...