A large animal with a mass of 1500kg is weighed on the surface of the Earth. What is its weight in N? If the animal steps off of the scale and down to the Earth 150 cm below, what force does the animal exert on the Earth at this point, and what is the resulting acceleration of the Earth upwards toward the animal? I understand hear that w=mg therefore I get that if wof the animal on Earth would = (1500kg)(9.80m/s^2)=14700N but beyond that I have no idea how to determine the forces. Please help!