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Question
You are told 3 things...1. That there are two objects with equal masses. 2. Both objects are in motion. 3. One object has a greater kinetic energy than the other. How is this possible? (1 point)
Responses
One object has a greater volume than the other object.
One object has a greater volume than the other object.
One object has a greater speed than the other object.
One object has a greater speed than the other object.
One object is blue and one object is red.
One object is blue and one object is red.
One object has a greater density then the other object.
1 answer
The correct response to the question is:
One object has a greater speed than the other object.
Kinetic energy depends on both the mass and the speed (velocity) of an object, and is calculated using the formula \( KE = \frac{1}{2} mv^2 \). Since the masses are equal, a difference in speed would result in a difference in kinetic energy.
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