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A ball of mass m moving with a velocity v hits a massive wall of mass M (M >> m) moving towards the ball with a velocity u. An elastic impact lasts for a time  Δt. Which of the following are correct.
  • a)
    The average elastic force acting on the ball is 
  • b)
    The kinetic energy of the ball remains the same after the collision.
  • c)
    The kinetic energy of the ball increase by 2mu(u+v) 
  • d)
    The average elastic force acting on the ball is 
Correct answer is option 'C,D'. Can you explain this answer?
Verified Answer
A ball of massmmoving with a velocityvhits a massive wall of massM(M&g...
In an elastic collision
vsep = vapp
change in momentum of ball is 
= 2m(u + v)
The correct answers are: The average elastic force acting on the ball is  The kinetic energy of the ball increase by 2mu(u+v)
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Most Upvoted Answer
A ball of massmmoving with a velocityvhits a massive wall of massM(M&g...
In an elastic collision
vsep = vapp
change in momentum of ball is 
= 2m(u + v)
The correct answers are: The average elastic force acting on the ball is  The kinetic energy of the ball increase by 2mu(u+v)
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A ball of massmmoving with a velocityvhits a massive wall of massM(M>>m) moving towards the ball with a velocityu. An elastic impact lasts for a timeΔt.Which of the following are correct.a)The average elastic force acting on the ball is b)The kinetic energy of the ball remains the same after the collision.c)The kinetic energy of the ball increase by 2mu(u+v)d)The average elastic force acting on the ball isCorrect answer is option 'C,D'. Can you explain this answer?
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A ball of massmmoving with a velocityvhits a massive wall of massM(M>>m) moving towards the ball with a velocityu. An elastic impact lasts for a timeΔt.Which of the following are correct.a)The average elastic force acting on the ball is b)The kinetic energy of the ball remains the same after the collision.c)The kinetic energy of the ball increase by 2mu(u+v)d)The average elastic force acting on the ball isCorrect answer is option 'C,D'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about A ball of massmmoving with a velocityvhits a massive wall of massM(M>>m) moving towards the ball with a velocityu. An elastic impact lasts for a timeΔt.Which of the following are correct.a)The average elastic force acting on the ball is b)The kinetic energy of the ball remains the same after the collision.c)The kinetic energy of the ball increase by 2mu(u+v)d)The average elastic force acting on the ball isCorrect answer is option 'C,D'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A ball of massmmoving with a velocityvhits a massive wall of massM(M>>m) moving towards the ball with a velocityu. An elastic impact lasts for a timeΔt.Which of the following are correct.a)The average elastic force acting on the ball is b)The kinetic energy of the ball remains the same after the collision.c)The kinetic energy of the ball increase by 2mu(u+v)d)The average elastic force acting on the ball isCorrect answer is option 'C,D'. Can you explain this answer?.
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