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A ball is thrown straight up in the air.When the ball reaches its highest point, which of the following is true?a. It is in equilibrium.b. It has zero acceleration.c. It has maximum momentum.d. It has maximum kinetic energy.e. None of the above

Respuesta :

Answer:

option E.

Explanation:

When the ball is at the highest point the velocity of the ball is zero.

At the height point the kinetic energy is zero and potential energy is maximum.

At maximum point momentum cannot be maximum because velocity is zero.

Acceleration on the ball is equal to acceleration due to gravity on the ball.

Hence, the correct answer is option E.

snehashish65

Non of the given options are standing true, therefore, the option (e) is correct.

The given problem is somewhat based on the concepts and fundamentals of free fall motion. When the ball is thrown straight up in the air, then the following analysis takes place.

  • On reaching the highest point, it will still experience a gravitational pull from the Earth, hence it cannot be said to be in equilibrium. Hence, option (a) is not true.
  • At highest point, the acceleration of ball will be acceleration due to gravity. Hence, option (b) is not true.
  • The momentum of ball will the product of mass and its velocity, since velocity of ball at highest point is zero. So, its momentum is also zero at highest point. Hence, option (c) is also not true.
  • Again kinetic energy at highest point will be zero due to zero velocity. Hence, option (d) is not true.

Thus, we can conclude that Non of the given options are standing true, therefore, the option (e) is correct.

Learn more about the free-fall motion here:

https://brainly.com/question/16756287

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