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A ball is dropped from a height of 10m. Ball is embedded in sand of 1m and stops.
- a)only kinetic energy remains conserved
- b)both momentum and kinetic energy are conserved
- c)only momentum remains conserved
- d)Neither K.E nor momentum is conserved.
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
A ball is dropped from a height of 10m. Ball is embedded in sand of 1m...
When body is dropped from height, the potential energy deceases and kinetic energy increases. A ball dropped from height will conserve only kinetic energy.
Most Upvoted Answer
A ball is dropped from a height of 10m. Ball is embedded in sand of 1m...
Explanation:
Conservation of Energy
When the ball is dropped from a height of 10m, it possesses potential energy due to its position above the ground. As it falls, this potential energy is converted into kinetic energy. At the moment the ball hits the sand, all of its potential energy is converted into kinetic energy.
Impact with the Sand
When the ball hits the sand, it comes to a stop and gets embedded in the sand. This means that all of its kinetic energy is transferred to the sand, resulting in the ball's complete loss of kinetic energy.
Conservation of Momentum
Momentum is defined as the product of an object's mass and velocity. When the ball is dropped, it accelerates due to the force of gravity and gains momentum. However, when it hits the sand, it comes to a sudden stop, resulting in a change in momentum.
Explanation of the Correct Answer
The correct answer is option 'A', which states that only kinetic energy remains conserved. This is because when the ball hits the sand and comes to a stop, all of its kinetic energy is transferred to the sand. However, momentum is not conserved because the ball undergoes a change in momentum when it comes to a sudden stop.
Conclusion
In conclusion, when a ball is dropped and embedded in sand, only kinetic energy remains conserved. Momentum is not conserved as the ball comes to a stop and undergoes a change in momentum.
Conservation of Energy
When the ball is dropped from a height of 10m, it possesses potential energy due to its position above the ground. As it falls, this potential energy is converted into kinetic energy. At the moment the ball hits the sand, all of its potential energy is converted into kinetic energy.
Impact with the Sand
When the ball hits the sand, it comes to a stop and gets embedded in the sand. This means that all of its kinetic energy is transferred to the sand, resulting in the ball's complete loss of kinetic energy.
Conservation of Momentum
Momentum is defined as the product of an object's mass and velocity. When the ball is dropped, it accelerates due to the force of gravity and gains momentum. However, when it hits the sand, it comes to a sudden stop, resulting in a change in momentum.
Explanation of the Correct Answer
The correct answer is option 'A', which states that only kinetic energy remains conserved. This is because when the ball hits the sand and comes to a stop, all of its kinetic energy is transferred to the sand. However, momentum is not conserved because the ball undergoes a change in momentum when it comes to a sudden stop.
Conclusion
In conclusion, when a ball is dropped and embedded in sand, only kinetic energy remains conserved. Momentum is not conserved as the ball comes to a stop and undergoes a change in momentum.
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A ball is dropped from a height of 10m. Ball is embedded in sand of 1m and stops.a)only kinetic energy remains conservedb)both momentum and kinetic energy are conservedc)only momentum remains conservedd)Neither K.E nor momentum is conserved.Correct answer is option 'A'. Can you explain this answer?
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