algebra
ok, well knowing that p initial = p final, i knew that
m1v1i + m2v2i = m1v1f + m2v2f
Moving the variables around so that i would have the masses as common variables, i got
m1 (v1i - v1f) = m2 (v2f - v2i) -- equation 1
at this point i worked with the kinetic energy...
Homework Statement
A 4 kg block moving to the right at 6 m/s collides elastically with a 2 kg block moving to the right at 3 m/s. Find the final velocities and the initial and final energies. Show all your work. [ignore external forces]
Homework Equations
In an elastic collision...
It's more clear to me how to do this problem...
After the thin wire attached, I calculated that qa1=qa2=6.4 times 10^-7.
Then, I assume you can use math to calculate qab, right? I'm not sure how though, as my math skills aren't that good either.
Thanks for helping!
Two conducting spheres have identical radii. Initially they have charges of opposite sign and unequal magnitudes with the magnitude of the positive charge larger than the magnitude of the negative charge. They attract each other with a force of 0.162N when separated by 0.3m. The spheres are...
A compact car and a large truck collide head on and stick together. Which undergoes the larger momentum change? 1) Truck, 2) Car, 3) The momentum change is the same for both vehicles, or 4) Cannot tell without knowing the final velocity of the combined mass.
:rolleyes: i thought it was car...
I have no clue how to do this problem :mad: :
A flight attendant pulls her 75.2 N flight bag a distance of 268 m along a level airport floor at a constant velocity. The force she exerts is 33.0 N at an angle of 69.9 degrees above the horizontal. Find the work done by the force of friction on...