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In termianl velocity,the force due to weight is equal to force due to air resistance so why doesnt the object stop. Of course I know it won't stop but I want an explination in terms of physics. As what I understand is when 2 forces in opposite directions are equal, there is no movement. Thanks

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marked as duplicate by AccidentalFourierTransform, stafusa, sammy gerbil, Community May 6 '18 at 19:06

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    $\begingroup$ Newton's second law $\endgroup$ – Chris May 6 '18 at 0:30
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    $\begingroup$ As what I understand is when 2 forces in opposite directions are equal, there is no movement. Where'd you learn that? $\endgroup$ – Kyle Kanos May 6 '18 at 11:44
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When two forces in opposite directions are equal, there is no acceleration. That doesn't mean that there is no movement. It simply means that there is no change in velocity.

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  • $\begingroup$ So, If an object is moving at terminal velocity and then opens the parachute, the air resistance is higher than the weight so why doesnt he go upwards. $\endgroup$ – Omar Magdy May 6 '18 at 15:56
  • $\begingroup$ @OmarMagdy See question linked in comment by Chris above. $\endgroup$ – sammy gerbil May 6 '18 at 18:18
  • $\begingroup$ @OmarMagdy If you were moving at the same speed as the falling object, you would see it go upwards. If you were on the ground, you would see it slow down. In both of these cases, the fact that there is a net force on the object means that it accelerates, which means that its velocity changes. If its velocity is already zero in your reference frame, that means it starts to move. If its velocity is nonzero in your reference frame, that means it speeds up, slows down, or changes direction. $\endgroup$ – probably_someone May 6 '18 at 18:33

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