Yes (answer (f)).Lori said:
The formula for calculating final velocity in a collision problem is Vf = (m1v1 + m2v2) / (m1 + m2), where Vf is the final velocity, m1 and m2 are the masses of the two objects, and v1 and v2 are the velocities of the two objects before the collision.
The direction of the final velocity can be determined by considering the direction of the initial velocities of the two objects. If the two objects are moving in the same direction, the final velocity will have the same direction. If the two objects are moving in opposite directions, the final velocity will have the direction of the larger initial velocity.
Yes, in an elastic collision, the final velocity can be greater than the initial velocities. This occurs when the two objects have different masses and the lighter object bounces off the heavier object with a greater velocity.
In an elastic collision, the total kinetic energy of the system is conserved, meaning that the total energy before the collision is equal to the total energy after the collision. In an inelastic collision, some of the kinetic energy is lost and converted into other forms of energy, such as heat or sound.
To account for friction in a collision problem, you can use the coefficient of restitution (e) in the final velocity formula. The coefficient of restitution accounts for the loss of kinetic energy due to friction and is typically a value between 0 and 1, where 1 represents a perfectly elastic collision and 0 represents a completely inelastic collision.
