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If you drop a rock from a great height about how fast will it be falling after 5 seconds neglecting air resistance?
Wiki User
∙ 14y ago
The object will be falling at 49 m/s.
This is solved by multiplying the force of gravity (9.8 m/s) by the time you're calculating (5s).
Wiki User
∙ 14y ago
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If you drop a rock from a great height about how far will it fall after 3 seconds neglecting air resestance?
The acceleration of gravity is 9.8 meters (32.2 feet) per second2.After 3 seconds, the speed of the falling rock is 29.4 meters (96.6 feet) per second.The rock's average speed during the 3 seconds is 14.7 meters (48.3 feet) per second.The distance it has fallen = (average speed) x (time) = 44.1 meters (144.9 feet).
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On object falling under the force of gravity (9.8 m/s2) would, in a vacuum, fall a distance of 706 metres in 12 seconds. In a non-vacuum, i.e. air, the object would fall less distance in the same time due to drag.xt = 0.5 (9.8) t2
What occurs only when air resistance does not affect the motion of a falling object?
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If a tennis ball is dropped from a height of 9 meters above the earth how long will it take to hit the ground?
neglecting air resistance, the distance (s) = 1/2 gravity acceleration(g) x time (t) squared; s =1/2 gt^2;solve for time using g = 9.81 m/s/s and you get t = 1.35 seconds
Why the air resistance decrease the acceleration on falling object?
Drop a pound of feathers (in a bag) and a pound of lead from a height. The smaller mass of the lead will let it fall faster due to less air resistance, than the greater mass and much greater air resistance of the feathers.
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So? Whats the question? _______________________________ It doesn't matter what it is (well, if we ignore air resistance), in Earth's gravity the object will accelerate at 9.8 meters per second per second. Dropped from an altitude H, you can use the formula =(2/9.8*H)^0.5 to calculate the time it takes (in seconds) to the ground. In the absence of air resistance, it will take 0.808 seconds to fall. The speed of the falling object at any moment can be calculated as the time multiplied by 9.8 meters per second per second. In the absence of air resistance, the laundry bag will be falling at a speed of 7.9 meters per second when it hits.
