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A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?
- a)During downward motion
- b)When the ball comes to rest
- c)During upward motion
- d)When the boy catches the ball
Correct answer is 'A'. Can you explain this answer?
Verified Answer
A boy throws a ball up and catches it when the ball falls back. In whi...
- When the ball moves upward, the force of gravitation is acting in the opposite direction of the ball that is why in that case acceleration is negative or in other words deceleration takes place.
- But when the ball is moving downwards the force of gravitation is in the same direction of the motion of the ball thus acceleration takes place in this case.
Most Upvoted Answer
A boy throws a ball up and catches it when the ball falls back. In whi...
Acceleration during downward motion of the ball
Acceleration is defined as the rate of change of velocity with respect to time. When an object moves, it may experience acceleration due to various factors like change in speed, direction or both. In the case of a ball thrown up by a boy, the ball experiences acceleration during its upward and downward motion.
However, the question asks about the part of the motion where the ball is accelerating the most. Let us consider the different phases of the motion of the ball and analyze the acceleration.
Upward motion
When the boy throws the ball up, it experiences an upward force due to the throw. This force causes the ball to move upwards, and it gains velocity. However, the acceleration due to this force decreases as the ball moves higher. At the highest point, the velocity of the ball becomes zero, and the acceleration due to the upward force becomes zero too.
Downward motion
As the ball reaches the highest point, it starts to fall back due to the force of gravity. Now, the acceleration due to gravity acts in the downward direction, and it increases the velocity of the ball. The acceleration due to gravity is constant, and it remains the same throughout the downward motion of the ball. Therefore, the ball experiences maximum acceleration during its downward motion.
When the ball comes to rest
At the moment when the ball comes to rest, its velocity becomes zero, and the acceleration becomes zero too. This is because the forces acting on the ball are balanced, and there is no net force to cause acceleration.
When the boy catches the ball
When the boy catches the ball, he applies a force on it to stop its motion. This force causes the ball to decelerate, and its velocity decreases. However, the deceleration is not as high as the acceleration due to gravity during the downward motion of the ball.
Conclusion
In conclusion, the ball experiences maximum acceleration during its downward motion due to the constant acceleration due to gravity acting in the downward direction.
Acceleration is defined as the rate of change of velocity with respect to time. When an object moves, it may experience acceleration due to various factors like change in speed, direction or both. In the case of a ball thrown up by a boy, the ball experiences acceleration during its upward and downward motion.
However, the question asks about the part of the motion where the ball is accelerating the most. Let us consider the different phases of the motion of the ball and analyze the acceleration.
Upward motion
When the boy throws the ball up, it experiences an upward force due to the throw. This force causes the ball to move upwards, and it gains velocity. However, the acceleration due to this force decreases as the ball moves higher. At the highest point, the velocity of the ball becomes zero, and the acceleration due to the upward force becomes zero too.
Downward motion
As the ball reaches the highest point, it starts to fall back due to the force of gravity. Now, the acceleration due to gravity acts in the downward direction, and it increases the velocity of the ball. The acceleration due to gravity is constant, and it remains the same throughout the downward motion of the ball. Therefore, the ball experiences maximum acceleration during its downward motion.
When the ball comes to rest
At the moment when the ball comes to rest, its velocity becomes zero, and the acceleration becomes zero too. This is because the forces acting on the ball are balanced, and there is no net force to cause acceleration.
When the boy catches the ball
When the boy catches the ball, he applies a force on it to stop its motion. This force causes the ball to decelerate, and its velocity decreases. However, the deceleration is not as high as the acceleration due to gravity during the downward motion of the ball.
Conclusion
In conclusion, the ball experiences maximum acceleration during its downward motion due to the constant acceleration due to gravity acting in the downward direction.
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Community Answer
A boy throws a ball up and catches it when the ball falls back. In whi...
When the ball moves upward ,the force of gravitation is acting in the opposite direction of the ball that is why in that case acceleration is negative or in other words deceleration takes place, but when the ball is moving downwards the force of gravitation is in the same direction of the motion of the ball thus acceleration takes place in this case .so option A is the correct answer.
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A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?a)During downward motionb)When the ball comes to restc)During upward motiond)When the boy catches the ballCorrect answer is 'A'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?a)During downward motionb)When the ball comes to restc)During upward motiond)When the boy catches the ballCorrect answer is 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?a)During downward motionb)When the ball comes to restc)During upward motiond)When the boy catches the ballCorrect answer is 'A'. Can you explain this answer?.
A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?a)During downward motionb)When the ball comes to restc)During upward motiond)When the boy catches the ballCorrect answer is 'A'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?a)During downward motionb)When the ball comes to restc)During upward motiond)When the boy catches the ballCorrect answer is 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?a)During downward motionb)When the ball comes to restc)During upward motiond)When the boy catches the ballCorrect answer is 'A'. Can you explain this answer?.
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A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?a)During downward motionb)When the ball comes to restc)During upward motiond)When the boy catches the ballCorrect answer is 'A'. Can you explain this answer?, a detailed solution for A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?a)During downward motionb)When the ball comes to restc)During upward motiond)When the boy catches the ballCorrect answer is 'A'. Can you explain this answer? has been provided alongside types of A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?a)During downward motionb)When the ball comes to restc)During upward motiond)When the boy catches the ballCorrect answer is 'A'. Can you explain this answer? theory, EduRev gives you an
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