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A staircase has 5 steps each 10 cm high and 10 cm wide. What is the minimum horizontal velocity to be given to the ball so that it hits directly the lowest plane from the top of the staircase? ( g =10 ~ms ⁻² )

Options

  1. A2 ~ms ⁻¹
  2. B1 ~ms ⁻¹
  3. C2 ~ms ⁻¹
  4. D1 2 ~ms ⁻¹

Correct answer

B. 1 ~ms ⁻¹

Step-by-step solution

The correct answer is option B.

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