Question on: JAMB Physics - 2015
A structural engineer stood on a top of a building releasing a light and heavy object to the ground which of the following statement is true?(Neglect Air Resistance)
A
Bothe light and heavy subject reach the ground at the same time
B
he light object get to the ground first before the heavy object
C
he heavy object to the ground first before the light object
D
None get to the ground first
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Correct Option: A
The correct answer is A. Both objects will reach the ground at the same time. Here's why:
- Neglecting Air Resistance: The question explicitly states to neglect air resistance. In a vacuum (or when air resistance is negligible), the only force acting on the objects is gravity.
- Acceleration due to Gravity: Gravity causes all objects to accelerate downwards at the same rate, regardless of their mass or weight. This acceleration is approximately 9.8 m/s².
- Equal Time of Descent: Since both objects experience the same acceleration due to gravity and are released from the same height, they will take the same amount of time to reach the ground.
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