A small rock is thrown vertically upward with a speed of
18.0 m/s from the edge of the roof of a 30.0-m-tall building. The
rock doesn't hit the building on its way back down and lands in the
street below. Air resistance can be neglected. (a) What is the speed
of the rock just before it hits the street? (b) How much time elapses
from when the rock is thrown until it hits the street?
Answers
Answered by
3
Answer:21m/s
Explanation:
Similar questions