At the same instant that a 0.50-kg 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 each other without colliding. at the end of 2.0 s the. height above earth’s surface of the center of mass of the two-ball system is ?

Explanation:

As we know that the position of center of mass of the system of two masses is given as

here we know that

Similarly for another ball we have

now for COM for above two masses

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods