IDNLearn.com connects you with a community of knowledgeable individuals ready to help. Discover detailed and accurate answers to your questions from our knowledgeable and dedicated community members.

at the same instant that a 0.50kg ball is dropped from 25 m above earth, a second ball with a mass of 0.25 kg is thrown straight upward from earth's surface with an initial speed of 15 m/s. they move along nearby lines and pass without colliding. at the end of 2.0s the velocity of the center of mass of the two-ball system is?​