Wednesday
April 16, 2014

Homework Help: Physics: Collison/Momentum Problem

Posted by Cicilia on Wednesday, January 25, 2012 at 8:03pm.

A 15 kg mass, moving east at 5 m/s, collides elastically with another 10 kg mass, moving west at 1 m/s. After the collision, the larger mass moves off with a velocity of 3 m/s. What is the final velocity of the smaller mass?

Is it 4m/s? Or would it be 2m/s?
Do you add the momentum of the 2 masses because of conservation of momentum or subtract them because they're going in different directions?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Science - Two masses of 20 and 10 kg are moving in the same direction and one ...
Physics - A glass ball, ball A, of mass 6.0 g moves at a velocity of 19.0 cm/s. ...
AP Physics - a ball of mass 3 kg is moving with a velocity of 10 m/s. This ball ...
AP Physics - a ball of mass 3 kg is moving with a velocity of 10 m/s. This ball ...
physics - A compact car, mass 705 kg, is moving at 1.00 102 km/h toward the east...
physics - A compact car, mass 705 kg, is moving at 1.00 102 km/h toward the east...
Physics - What is the momentum of a two-particle sys- tem composed of a 1300 kg ...
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 Momentum - 1) Two 1 kg balls move away from each other, one traveling 5 ...

Search
Members