A shark was swimming at 5 meters per second. When it sensed a tuna, the shark began swimming at 10 meters per second. Which is the best prediction of its kinetic energy?
KE=12mv2
(1 point)
Responses
The shark’s kinetic energy stayed the same.
The shark’s kinetic energy stayed the same.
The shark’s kinetic energy increased by a factor of 2.
The shark’s kinetic energy increased by a factor of 2.
The shark’s kinetic energy increased by a factor of 4.
The shark’s kinetic energy increased by a factor of 4.
The shark’s kinetic energy decreased by half.
The shark’s kinetic energy decreased by half.
The shark's kinetic energy increased by a factor of 4.
The best prediction of the shark's kinetic energy can be found by using the formula for kinetic energy:
KE = 1/2 * m * v^2
Where KE is the kinetic energy, m is the mass of the shark, and v is the velocity of the shark.
In this case, the shark's velocity increased from 5 meters per second to 10 meters per second. The mass of the shark is not provided, so we can assume it remains constant.
To find the ratio of the new kinetic energy to the initial kinetic energy, we need to determine the ratio of the square of the new velocity to the square of the initial velocity.
Ratio = (10^2) / (5^2) = 100 / 25 = 4
Therefore, the best prediction is that the shark's kinetic energy increased by a factor of 4.