A shark weighing 250 kg swims at a speed of 18 km / h. Determine its kinetic energy.

For a closed system, the kinetic energy of a moving shark is:
Ek = (m * V ^ 2) / 2, where Ek is the kinetic energy of the shark (J), m is the mass of the shark (m = 250 kg), V is the speed of the shark (V = 18 km / h = 18 * 1000 / 3600 = 5 m / s).
Let’s calculate the kinetic energy of the shark:
Ek = (m * V ^ 2) / 2 = (250 * 5 ^ 2) / 2 = 3125 J.
Answer: The kinetic energy of a shark is 3125 J.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.