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A penny at rest is dropped from the top of a tall stairwell what is the penny's velocity after it has fallen for 2 seconds?
Wiki User
∙ 12y ago
it would be 7
Wiki User
∙ 12y ago
Lava Alfred
The answer is 19.6 m/s
Wiki User
∙ 12y agoIf air resistance is not considered, then a penny dropped from rest will accelerate 9.8 m/s² {on Earth}. Distance traveled is ½at², and velocity is at.
After 2 seconds, it will have traveled 19.6 meters {about 64 feet} and reach a velocity of 19.6 m/s {about 44 miles per hour}.
eyas firas
19m/s
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