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HMS, BM EQ-Bank 960 MC

A cricket bowler delivers a ball with side-spin that curves away from a right-handed batter. This lateral movement is caused by:

  1. Wind resistance acting on the ball's seam
  2. Magnus force generated by the ball's rotation
  3. Gravitational pull affecting the ball's trajectory
  4. Air pressure changes from the bowler's release technique
Show Answers Only

\(B\)

Show Worked Solution
  • B is correct: Side-spin creates the Magnus force perpendicular to both the spin axis and direction of travel, causing lateral curve.

Other Options:

  • A is incorrect: Seam position affects swing, but the question specifically describes side-spin effects.
  • C is incorrect: Gravity acts vertically and wouldn’t cause lateral movement.
  • D is incorrect: Release technique initiates spin but doesn’t directly create the curving force.

Filed Under: Fluid Mechanics and Force Tagged With: Band 5, smc-5879-30-Magnus force

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