A hawk is chasing a sparrow. At the beginning of the chase, the hawk’s kinetic energy is 5.1 Joules. At the end of the chase, the hawk doubles its speed. What is the best prediction for its kinetic energy at the end of the chase?(1 point) Responses 20.4 J 20.4 J 10.2 J 10.2 J 5.1 J 5.1 J 2.55 J
The kinetic energy of an object is directly proportional to the square of its speed. If the hawk doubles its speed, its kinetic energy will be four times its original value. Therefore, the best prediction for its kinetic energy at the end of the chase is 4 times 5.1 J, which is 20.4 J. Thus, the answer is 20.4 J.
