A particle is projected vertically upwards from a height 45 metres above the ground with
FURTHER MATHEMATICS
WAEC 2006
A particle is projected vertically upwards from a height 45 metres above the ground with a velocity of 40 m/s. How long does it take it to hit the ground? [Take g = 10ms?2].
- A. 1s
- B. 3s
- C. 7s
- D. 9s
Correct Answer: D. 9s
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