When the speed of a car is halved, its kinetic energy is
Question 1 Report
When the speed of a car is halved, its kinetic energy is
Answer Details
When the speed of a car is halved, its kinetic energy is quartered.
Kinetic energy is the energy an object possesses due to its motion. It is dependent on the object's mass and velocity. The formula for kinetic energy is 1/2 x mass x velocity squared.
When the speed of a car is halved, its velocity is reduced by a factor of 2. Using the formula for kinetic energy, we can see that the kinetic energy is proportional to the square of the velocity. Therefore, if the velocity is halved, the kinetic energy is reduced to 1/4th of its original value (0.5 x m x (v/2)^2 = 0.25 x m x v^2).
So, if the speed of a car is halved, its kinetic energy is quartered.
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