Momentum of Red Cart = . Momentum of Blue Cart = (include direction by using the appropriate sign) Sum the momentum of Red and Blue carts = ***Compare the initial momentum before the collision to the total momentum after the collision. Is momentum conserved? KE of Red Cart = KE of Blue Cart = Sum of KE of Red and Blue carts = ***Compare the total KE before and after the explosion. Is KE conserved during explosive events? Where did the KE come from