@inproceedings{SPP-2018-PC-36, title={Conservation of momentum in two-dimensional elastic collision}, volume={36}, booktitle={Proceedings of the Samahang Pisika ng Pilipinas}, author={De Mata, Joy Kristelle Candelaria and Alemania, Marielle Anne and Garcia, Wilson}, year={2018}, pages={SPP-2018-PC-36}, url={https://proceedings.spp-online.org/article/view/SPP-2018-PC-36} }