Concept explainers
To calculate: the increase in kinetic energy when the car doubles its speed.
Answer to Problem 17PP
The kinetic energy of the car increases four times when the car doubles its speed.
Explanation of Solution
Given data:
Mass of the car,
Speed of the car,
Formula used:
Kinetic Energy Equation:
Where
Calculation:
As per the problem,
To calculate the kinetic energy when the speed of the car is
Substitute the values of mass and speed in the kinetic energy equation:
To calculate the kinetic energy when the speed of the car is
Substitute the values of mass and speed in the kinetic energy equation:
The increase in kinetic energy =
Conclusion:
The kinetic energy of the car increases four times when the car doubles its speed.
Chapter 4 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
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