Two 2.0 kg bodies, a and b, collide. the velocities before the collision are ~va = (15ˆi + 30ˆj) m/s and ~vb = (−10ˆi + 5.0ˆj) m/s. after the collision, ~va = (−5.0ˆi + 20ˆj) m/s. what are (a) the final velocity of b and (b) the change in the total kinetic energy (including sign)?

Part a)

Part b)

Explanation:

As we know that there is no external force on the system of two masses so here total momentum of the system will remains conserved

so we can say

Part b)

magnitude of the initial speed of A =

magnitude of the initial speed of B =

magnitude of final speed of A =

magnitude of final speed of B =

Now change in total kinetic energy is given as

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

im guessing the west of station b