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A spherical ball of mass 0.5 kg is dropped in air and it strikes a pond as shown in the figure (a). A graph of the kinetic energy of the ball against the distance descended is shown in the figure (b).
Fill in the blanks by selecting the correct option. (Take g = 10 m/s2)
The height above the surface of the pond from where the ball has been dropped is (i) m. The average
acceleration of the ball in first part of the graph (OP) is (ii) ms–2. The average resistive force provided
by the water against the ball during the journey from P to Q is (iii) N.
  • a)
    A
  • b)
    B
  • c)
    C
  • d)
    D
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A spherical ball of mass 0.5 kg is dropped in air and it strikes a pon...
At highest point P, Kinetic energy will transform into potential energy.

As in the OP part, spherical ball is in free fall. Hence its acceleration will be 10 ms–2.
From the graph, the average resistive force provided by water from P to Q
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A spherical ball of mass 0.5 kg is dropped in air and it strikes a pond as shown in the figure (a). A graph of the kinetic energy of the ball against the distance descended is shown in the figure (b).Fill in the blanks by selecting the correct option. (Take g = 10 m/s2)The height above the surface of the pond from where the ball has been dropped is (i) m. The averageacceleration of the ball in first part of the graph (OP) is (ii) ms–2. The average resistive force providedby the water against the ball during the journey from P to Q is (iii) N.a)Ab)Bc)Cd)DCorrect answer is option 'C'. Can you explain this answer?
Question Description
A spherical ball of mass 0.5 kg is dropped in air and it strikes a pond as shown in the figure (a). A graph of the kinetic energy of the ball against the distance descended is shown in the figure (b).Fill in the blanks by selecting the correct option. (Take g = 10 m/s2)The height above the surface of the pond from where the ball has been dropped is (i) m. The averageacceleration of the ball in first part of the graph (OP) is (ii) ms–2. The average resistive force providedby the water against the ball during the journey from P to Q is (iii) N.a)Ab)Bc)Cd)DCorrect answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about A spherical ball of mass 0.5 kg is dropped in air and it strikes a pond as shown in the figure (a). A graph of the kinetic energy of the ball against the distance descended is shown in the figure (b).Fill in the blanks by selecting the correct option. (Take g = 10 m/s2)The height above the surface of the pond from where the ball has been dropped is (i) m. The averageacceleration of the ball in first part of the graph (OP) is (ii) ms–2. The average resistive force providedby the water against the ball during the journey from P to Q is (iii) N.a)Ab)Bc)Cd)DCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A spherical ball of mass 0.5 kg is dropped in air and it strikes a pond as shown in the figure (a). A graph of the kinetic energy of the ball against the distance descended is shown in the figure (b).Fill in the blanks by selecting the correct option. (Take g = 10 m/s2)The height above the surface of the pond from where the ball has been dropped is (i) m. The averageacceleration of the ball in first part of the graph (OP) is (ii) ms–2. The average resistive force providedby the water against the ball during the journey from P to Q is (iii) N.a)Ab)Bc)Cd)DCorrect answer is option 'C'. Can you explain this answer?.
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