A cart of mass moving at on a frictionless track collides head-on and sticks to a…

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

A cart of mass

2\,\text{kg}

moving at

6\,\text{m s}^{-1}

on a frictionless track collides head-on and sticks to a second cart of mass

1\,\text{kg}

initially at rest on the same track. Calculate the speed of the combined cart immediately after the collision.