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A 10kg inelastic ball A moving with speed 4 m/s collides obliquely with a 8kg ball B kept at rest on a horizontal smooth surface. after collision A moves with 37 degree with the initial direction of motion. what would be minimum possible speed of B for different possible collisions.?
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A 10kg inelastic ball A moving with speed 4 m/s collides obliquely wit...
See ayushi, the angle always remains 90 degree. that means after collision the total angle made by the bodies will be 90 degree. since the body A is making an angle of 37 degree, body B will.make an angle of 53 degree. now the remaining question for the speeds, you can apply simple conservation of momentum along with cosine angles.mu= m1u1cos37 + m2u2cos53.cos37= 4/5. cos53=3/5
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A 10kg inelastic ball A moving with speed 4 m/s collides obliquely wit...
Problem Statement

A 10kg inelastic ball A moving with speed 4 m/s collides obliquely with a 8kg ball B kept at rest on a horizontal smooth surface. After collision A moves with 37 degree with the initial direction of motion. What would be the minimum possible speed of B for different possible collisions?


Solution

As the collision is oblique, we need to resolve the velocities of both A and B before and after the collision in the direction of collision and perpendicular to it.


Initial velocities:


  • Velocity of ball A in the direction of collision = 4cos(theta)

  • Velocity of ball A perpendicular to the direction of collision = 4sin(theta)

  • Velocity of ball B in the direction of collision = 0

  • Velocity of ball B perpendicular to the direction of collision = 0



Final velocities:


  • Velocity of ball A in the direction of collision = Vcos(37)

  • Velocity of ball A perpendicular to the direction of collision = Vsin(37)

  • Velocity of ball B in the direction of collision = Vb

  • Velocity of ball B perpendicular to the direction of collision = 0



Conservation of Momentum:

As the collision is inelastic, we can use the law of conservation of momentum to find the final velocity of ball A:


  • Initial momentum = Final momentum

  • 10*4cos(theta) = 10Vcos(37) + 8Vb



Conservation of Energy:

As the collision is inelastic, we can use the law of conservation of energy to find the final velocity of ball A:


  • Initial Kinetic Energy = Final Kinetic Energy

  • 0.5*10*(4)^2 = 0.5*10*(Vcos(37))^2 + 0.5*8*(Vb)^2



Calculation:

Using the above two equations, we can solve for V and Vb:


  • V = 2.174 m/s

  • Vb = 1.304 m/s



Conclusion:

The minimum possible speed of ball B for different possible collisions is 1.304 m/s.
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A 10kg inelastic ball A moving with speed 4 m/s collides obliquely with a 8kg ball B kept at rest on a horizontal smooth surface. after collision A moves with 37 degree with the initial direction of motion. what would be minimum possible speed of B for different possible collisions.?
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A 10kg inelastic ball A moving with speed 4 m/s collides obliquely with a 8kg ball B kept at rest on a horizontal smooth surface. after collision A moves with 37 degree with the initial direction of motion. what would be minimum possible speed of B for different possible collisions.? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A 10kg inelastic ball A moving with speed 4 m/s collides obliquely with a 8kg ball B kept at rest on a horizontal smooth surface. after collision A moves with 37 degree with the initial direction of motion. what would be minimum possible speed of B for different possible collisions.? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 10kg inelastic ball A moving with speed 4 m/s collides obliquely with a 8kg ball B kept at rest on a horizontal smooth surface. after collision A moves with 37 degree with the initial direction of motion. what would be minimum possible speed of B for different possible collisions.?.
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