Recent content by Akuu

Wait a sec let's see... m1v1 + m2v2 = m1u1 + m2u2 : v2=0 m1v1 = m1u1 + m2u2 : Is it safe to assume u1 and u2 are the same since they become, like, 1? then - m1v1 = (m1+m2)u v1 = (m1+m2)u/m1 Now is it that the Kinetic energy appears at the HIT, and turns into Potential energy when it...

I get this: m1v1 = m1u1+m2u2 v1 = u1+(m2u2/m1) And also this: v1 = sqr(2gh) (= 1.3139... ) sqr(2gh) = u1+m2u2/m1Now I can't do anything with this because u1 and u2 are still undefined. You need to know the lengths of the ropes or something. Grrr. Wait. When exactly does the Kinetic energy...

Speed of a bullet shot into a pendulum ,picture included (dl attch. if pic won't show) Homework Statement You're supposed to be able to define the speed of a bullet with the help of a pendulum. The bullet is shot into a big tree piece ( The pendulum ) with a known mass (weight). The tree...