Physics, 11.07.2019 04:40 neftalirojas14

Two objects are dropped from a bridge an interval of 1.0s apart. air resistance is negligible. during the time that both objects continue to fall, their separation increases. can someone explain why it increases, instead of staying constant?

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If the two objects are dropped at 1.0 s time interval, their velocity will increase as they descend which will cause their separation distance to increase because velocity is directly proportional to displacement.

The rate at which each object falls is influenced by their respective weights. If air resistance is negligible, gravity will continue to pull each object until it hits the ground.

The influence of gravity will cause the following:

The speed of each object will increase gradually until it hits the ground, and each object will have maximum velocity before it hits the ground. This shows that velocity of each object increases as it descends.Velocity is directly proportional to displacement, as the velocity of each object increases, the distance between them will also increase.

Thus, if the two objects are dropped at 1.0 s time interval, their velocity will increase as they descend which will cause their separation distance to increase because velocity is directly proportional to displacement.

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Answer from: deyuntamathis

Their separation would be constant if they were both falling at the same speed. But they're not. A falling object falls 9.8 m/s faster every second than it fell in the previous second.

So the one that dropped first ... and had an extra second to fall ... is always falling faster than the one that dropped later. So it keeps getting farther ahead.

Answer from: Quest

i wanna say it’s between b and d, leaning more towards b.

Answer from: Quest

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this. hope that you like the video and that it explains more in detail to you.

that is the link.

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Two objects are dropped from a bridge an interval of 1.0s apart. air resistance is negligible. durin...