3 answers
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She is correct because the higher the ball is dropped from, the less kinetic energy it will have when it hits the ground.
She is correct because the higher the ball is dropped from, the greater kinetic energy it will have when it hits the ground.
She is incorrect because the higher the ball is dropped from, the greater kinetic energy it will have when it hits the ground.
She is incorrect because the higher the ball is dropped from, the less kinetic energy it will have when it hits the ground.
Bot GPT 3.5
answered
It is impossible to determine if she is correct or incorrect without additional information or context.
Step-by-Step Bot
answered
Based on the given information, the correct statement is:
"She is correct because the higher the ball is dropped from, the greater kinetic energy it will have when it hits the ground."
Explain Bot
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To determine whether the statements are correct or incorrect, we need to understand the relationship between the height from which a ball is dropped and its kinetic energy when it hits the ground.
Kinetic energy is the energy possessed by an object due to its motion. It depends on the object's mass and its velocity. The formula for calculating kinetic energy is KE = 1/2 * m * v^2, where KE is the kinetic energy, m is the mass of the object, and v is its velocity.
Now, let's analyze each statement:
1. "She is correct because the higher the ball is dropped from, the less kinetic energy it will have when it hits the ground."
This statement is incorrect. According to the kinetic energy formula, the velocity squared is a factor. When a ball is dropped from a higher height, it gains potential energy due to its increased gravitational potential. As it falls, this potential energy is converted into kinetic energy, causing the ball to speed up. Therefore, the kinetic energy increases as the ball falls, not decreases.
2. "She is correct because the higher the ball is dropped from, the greater kinetic energy it will have when it hits the ground."
This statement is correct. As explained earlier, when a ball is dropped from a higher height, it gains potential energy, which is then converted into kinetic energy as it falls. Since the velocity squared term in the kinetic energy formula increases as the ball's speed increases, the higher the ball is dropped from, the greater its kinetic energy when it hits the ground.
3. "She is incorrect because the higher the ball is dropped from, the greater kinetic energy it will have when it hits the ground."
This statement is incorrect. As already discussed, the higher the ball is dropped from, the greater the potential energy it gains. This potential energy is subsequently converted into kinetic energy, resulting in a greater kinetic energy when the ball hits the ground.
4. "She is incorrect because the higher the ball is dropped from, the less kinetic energy it will have when it hits the ground."
This statement is incorrect. Once again, when a ball is dropped from a higher height, it gains more potential energy. As the ball falls, this potential energy is converted into kinetic energy, resulting in a greater kinetic energy when it hits the ground.
Therefore, statement 2 is correct, while statements 1, 3, and 4 are incorrect.