A ball is thrown upward from the ground with an initial speed of $17\mathrm{.}4$ m$/$s; at the same instant, another ball is dropped from a building $20$ m high. After how long will the balls be at the same height above the ground?

Answer rating: 100% (QA)

To determine when the two balls will be at the same height above the ground we need to analy... View the full answer