If a glass of water is on a table with a piece of paper under it, it is relatively easy to pull the paper out without disturbing the glass very much if the pull is done very quickly. This is because, with a quick pull:
A、the force on the glass will be less.;
B、the momentum of the paper will be greater.;
C、the time for the pull will be less.;
D、the coefficient of kinetic friction will be less.;
E、None of the others.
发布时间：2025-10-28 03:13:04
