400
The whale shark is the largest of all fish and can have the mass of three adult elephants. Suppose that a crane is lifting a whale shark into a tank for delivery to an aquarium. The crane must exert an unbalanced force of 25,000 N to lift the shark from rest. If the shark’s acceleration equals 1.25 m/s2, what is the shark’s mass?
What is 20,000 kg?