Posted by **issak** on Tuesday, July 19, 2011 at 5:45pm.

An object(A) of mass 0.2kg strikes a second object (B) of mass 0.35kg that is initially at rest. Mass A has an initial velocity of +3m/s.

A) Assume that the collision is entirely inelastic. calculate the final state for these objects. calculate the total energy for this system before and after the collision. is mechanical energy conserved? if not, account for the discrepancy.

B) now assume that the collision is now entirely elastic. Calculate and describe the final velocities for the two objects A and B. ( the collision is in one dimension)

- physics -
**bobpursley**, Tuesday, July 19, 2011 at 8:51pm
a) Assuming the masses get stuck, they travel at the same velocity stuck together. Momentum is conserved.

You and solve for that velocity

MaVa+MbVb=(Ma+Mb)V solve for V. Now you can answer the energy part.

b) Now, elastic, the math is harder, the masses are not stuck together, and each has a new velocity.

Momentum is conserved, as is momentum. Use those equations to find each final velocty.

## Answer This Question

## Related Questions

- physics - One object is at rest and another is moving. The two collide in a one-...
- Physics - Object A is moving due east, while object B is moving due north. They...
- physics - Object A is moving due east, while object B is moving due north. They ...
- Physics - Object A is moving due east, while object B is moving due north. They ...
- physic - a mass 2.9kg object moving at a speed of 5.9m\s sticks a mass 0.88kg ...
- physics - A 3.0-kg object moving 8.0 m/s in the positive x direction has a one-...
- physics - calculate the momentum of an object if: a. its mass is 4kg and its ...
- physics - Object A, which has mass m and a velocity Voi,collides with the Object...
- Physics - Consider a perfectly elastic collision between two objects of equal ...
- PHYSICS - How do I solve this? Object A is moving due east, while object B is ...

More Related Questions