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5 answers

as an object falls freely it accelerates at 9.8m/s2 until it reaches its terminal velocity (i.e velocity cannot inc further). Its acc remains constant i.e is the acc due to gravity

2007-01-26 04:33:12 · answer #1 · answered by Maths Rocks 4 · 0 1

As an object falls freely through the atmosphere, it increases its velocity at a beginning acceleration of 9.8m/s^2 until it reaches terminal velocity. However, as its velocity increases, the net acceleration decreases due to the increasing upward force of air pressure. Therefore, its acceleration actually decreases, eventually reaching zero when the object hits terminal velocity.

2007-01-26 12:47:18 · answer #2 · answered by XelaleX 2 · 1 0

The phrase "falls freely" is interpreted in physics to mean there is no wind resistance. (It's not realistic here on earth because we have air. But for theoretical purposes, we do study free fall.) Only your 1st answer correctly avoided talking about wind resistance or terminal velocity.

Your 1st answer talks in terms of g being in ft/s^2. If you prefer SI, every second the speed increases by 9.8 m/s compared to the second before, until it hits the ground.

Hope that helps,
sojsail

2007-01-26 14:31:48 · answer #3 · answered by sojsail 7 · 0 0

The velocity increases by 32 ft/sec/sec, i.e., every second it is going 32 ft/sec faster than the last second.

Acceleration remains constant.

2007-01-26 12:27:36 · answer #4 · answered by Philip McCrevice 7 · 0 1

It will eventually stop accellerating due to wind resistance. In fact as it enters thicker air it can start to slow down, if it doesn't burn up first.

2007-01-26 12:47:11 · answer #5 · answered by Anonymous · 0 1

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