Mathematics · Motion under Gravity
Assuming each floor height of a building is 10 m, from approximately which floor level must a car be dropped from rest (under free fall) so that it reaches a speed of 24.59 m/s when it hits the ground? (Take g = 9.8 m/s2)
- 110th floor
- 23rd floor✓
- 32nd floor
- 45th floor
Correct answer
3rd floor
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