A pendulum consists of a metal sphere of mass 2 kg hanging from a long string. The sphere is pulled to the side so that it is 5.7 m above its lowest position. It is then released. How fast will it be moving when it passes through the lowest point along its path? Give your answer to 1 decimal place. Question 4 1 pts A horizontal force of 69 N is used to push a box across a horizontal oor. The frictional force acting on the box from the oor is 23 N. What is the gain in kinetic energy of the box when it is moved through a distance of 6.1 m? Give your answer to zero decimal places