Assignment:
Q1. A ball is thrown straight downward from the top of a tall building. The initial speed of the ball is 10 m/s. It strikes the ground with a speed of 60 m/s. How tall is the building?
Q2. A stone is dropped from rest at an initial height h above the surface of the Earth. Show that the speed with which it strikes the ground is v = √2gh.
Provide complete and step by step solution for the question and show calculations and use formulas.