Question

A person is the arm out over a 32 bulding and throws a 200 gram brick straight upward, then put their arm in so that the brick doesn't eam when the brick falis back down. The speed of the brick is 29 ms the instant just before the brick touches the ground at the base of the building What is the largest elevation the brick had as measured from the base of the building? 401 45 ml than 30 meters Date than 50 meters 30 to 35 mm Sub

Answer 1

Let the elevation is h V = zamis U = 0 g = 9.81mls? v² = 0²+ zas 2 29-0+2x9.81h h;42.86 m ns is ao a option ie 40 to 45 meters