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A 0.5 kg ball moving with a speed of 12ms- 1strikes a hand wall at an angle of 300 with the wall. It is reflected with the same speed and at the same angle. If the ball is in contact with the wall for. 0.025 s the average force acting on the wall is

  1. 96 N
  2. 48 N
  3. 24 N
  4. 12 N

The correct answer is: 24 N

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