Post a New Question


posted by .

A 3 kg toy car with a speed of 10 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 3 m/s. If the cars are locked together after the collision with a speed of 4.80 m/s, how much kinetic energy is lost?

  • physics -

    find the velocity after collision:



    KE= 1/2 m v^2=1/2 (5)(25)=75/2 Joules

    What was the starting energy?
    1/2 (3*100)+1/2*2*9=159Joules
    check my math.

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question