A small object of mass 50 g is released from a point A. Determine the velocity of the object when it reaches a point B, a vertical distance of 30m below A. [g = 10 ms\(^{-2}\)

  • A 1.5 ms\(^{-1}\)
  • B 6.0 m s\(^{-1}\)
  • C 17.3 m s\(^{-1}\)
  • D 24.5 m s\(^{-1}\)
waec 2022physics

The correct answer is D. 24.5 m s\(^{-1}\)

v = ?, u = 0, a = 10, s = 30

V² = U²+2as

V² = 0 + 2 * 10 * 30

V² = 0 + 600

V = √600

V = 24.5m/s

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