to considerior can one 5. What is the change in velocity of object 2.when the masses are equal? What does the sign of this change indicate about the direction of the force on object 2? Draw a free-body diagram of the forces acting on object 2. __ 6. Do the directions of the forces acting on object 1 and object 2 support your understanding of why momentum is conserved? Explain. __ 7. When the mass of the object initially at rest (object 2) is tripled, how does the velocity of object 1 before the collision compare to the velocity of the two objects after the collision? __ 8. Do the two objects experience an equal change in velocity when their masses are unequal? If not, which object experiences a greater change in velocity? __ 9. If an object has more mass but experiences a smaller change in velocity than a second object, how does the force the more massive object experiences compare to the force on the less massive object? __

## Step 1<br />The change in velocity of object 2 when the masses are equal is determined by the conservation of momentum. The total momentum before the collision is equal to the total momentum after the collision. If the two objects have equal masses, the change in velocity of object 2 will be equal to the change in velocity of object 1. The sign of this change indicates the direction of the force on object 2. A positive sign would indicate that the force is in the same direction as the velocity, while a negative sign would indicate that the force is in the opposite direction.<br /><br />## Step 2<br />The directions of the forces acting on object 1 and object 2 support the understanding of why momentum is conserved. The forces acting on each object are equal and opposite, which means they cancel each other out. This is consistent with the principle of conservation of momentum, which states that the total momentum of a system remains constant if no external forces are acting on it.<br /><br />## Step 3<br />When the mass of the object initially at rest (object 2) is tripled, the velocity of object 1 before the collision will be less than the velocity of the two objects after the collision. This is because the increased mass of object 2 will result in a greater change in velocity, which will be shared between the two objects.<br /><br />## Step 4<br />The two objects do not experience an equal change in velocity when their masses are unequal. The object with the smaller mass will experience a greater change in velocity. This is because the same force acting on a smaller mass will result in a greater acceleration, according to Newton's second law of motion.<br /><br />## Step 5<br />If an object has more mass but experiences a smaller change in velocity than a second object, the force the more massive object experiences is less than the force on the less massive object. This is because the same force acting on a larger mass will result in a smaller acceleration, according to Newton's second law of motion.