Two spheres are launched horizontally from a 1.4 m high table. Sphere A is launched with an initial speed of 16 m/s. Sphere B is launched with an initial speed of 8 m/s.
a) Determine the time taken for each sphere to reach the ground.
b) Calculate the horizontal distance covered by each sphere before hitting the ground.
c) Compare the kinetic energies of the spheres when reaching the ground.
d) Find the potential energy of each sphere at the moment of launch.