In a partially elastic collision between two objects with unequal mass:Select one:a.the momentum of one will increase by the amount that the momentum of the other decreases.b.the velocity of one will increase by the amount that the velocity of the other decreases.c.the energy of one increases by the amount that the energy of the other decreases.d.the total momentum of the system will decrease.

An object of mass m moving at speed v0 strikes an object of mass 2m which had been at rest. The first object bounces backward along its initial path at speed v0. Is this collision elastic, and if not, what is the change in kinetic energy of the system?Select one:a.The collision is elastic.b.The kinetic energy decreases by mv2.c.The kinetic energy decreases by mv2.d.The kinetic energy increases by mv2.

In a perfectly elastic collision between two objects, which of the following is true?

In a perfectly elastic collision between two objects, which of the following is true?*1 pointKinetic energy is conserved, but momentum may not be conservedMomentum is conserved, but kinetic energy may not be conservedBoth momentum and kinetic energy are conservedNeither momentum nor kinetic energy is conserved

In a perfectly ELASTIC collision between two perfectly rigid objectsGroup of answer choicesthe kinetic energy of each object is conserved.the kinetic energy of the system is conserved, but the momentum of the system is not conserved.both the momentum and the kinetic energy of the system are conserved.the momentum of each object is conserved.the momentum of the system is conserved but the kinetic energy of the system is not conserved.

Two identical balls A and B collide head on elastically. If velocities of A and B, before the collision are +0.5m/s and -0.3m/s respectively, then their velocities, after the collision, are respectively: