keadaan ketegangan yg timbul antara plasma sel dan dinding sel karena isi sel mengisap cairan dari luar di sebut

First of all, we have to sort out how this situation is put together. You have 55 kg that's hanging suspended, but it's tied to another 65 kg on a horizontal ledge. Somewhere in there, the rope has to turn a corner. Obviously, it has to go around the edge of the ledge, and we have top assume that there's absolutely no friction against the rope at that point, because we're not told anything different. So we have to treat the edge like a frictionless pulley. And we're also going to ignore the weight of the rope.
OK. The weight of the 55-kg guy who is hanging suspended is (mass) x (gravity) = (55 x 9.8) = 539 newtons. That force soaks upward through the rope, makes the turn at the edge, and is exerted horizontally against the 65-kg guy on the ledge.
Hopefully, the suspended guy can hold on for a few minutes longer, while we analyze the forces around the heavier guy up on the ledge.
The weight of the guy on the ledge is (mass) x (gravity) = (65 x 9.8) = 637 newtons. That's his weight, pointing downward, against the ledge. As his boots slip along the ledge, the friction force against his motion is (his weight) x (the coefficient of kinetic friction between him and the ledge) = (637 newtons) x (0.45) = 286.65 newtons.
The man on the ledge has the rope pulling him toward the edge with 539N of force, and 286.65N of friction force holding him back. You can see that he's slipping toward the edge, because the friction force isn't enough to hold him.
The net force on him is (539N forward) + (286.65N backward) = 252.35N forward.
Since the man on the ledge has a net force pulling him forward toward the edge, he accelerates in that direction.
Force = (mass) x (acceleration)
Acceleration = (force) / (mass) = (252.35N) / (65kg) = 3.88 meters per second²
He's sliding toward the edge with an acceleration of about 0.396 G ... his speed is increasing about 39 or 40% as fast as it will after he falls over the edge, and the both of them proceed toward their ultimate and apparently unavoidable 'splut' below.
I've totally terrified myself answering this one.

Answered by AL2006 | 2024-06-10

To find the net acceleration of the climber on the ledge, calculate the force of friction using the coefficient of kinetic friction and weight of the climber, and then use Newton's second law to find the net acceleration. ;

Answered by JavierBardem | 2024-06-18

The net acceleration of the climber on the ledge is approximately 3.88 m/s². This calculation considers the weight of both climbers, the friction force on the ledge, and the resulting net force acting on the climber. By applying Newton's laws, we determine how the forces interact to produce this acceleration.
;

Answered by AL2006 | 2024-12-24

Istilah yang benar untuk ketegangan antara plasma sel dan dinding sel akibat isi sel menyerap cairan dari luar adalah turgor. Proses itu terjadi karena osmosis: air masuk ke dalam sel tumbuhan yang hipotonik, meningkatkan tekanan pada dinding sel hingga terbentuk ketegangan disebut juga tekanan turgor atau sifat sel menjadi turgid.Untuk memperjelas:Osmosis adalah perpindahan air dari konsentrasi rendah ke tinggi melalui membran semipermeabel.Saat sel menyerap air, volumenya meningkat dan mendorong membran plasma ke dinding sel, menciptakan tekanan turgor.Sel tumbuhan dalam kondisi ini disebut turgid, dan ketegangannya disebut turgor.Jadi kalau pertanyaannya: “Keadaan ketegangan antara plasma sel dan dinding sel karena isi sel mengisap cairan dari luar disebut …” jawabannya Turgor.

Answered by dikajatiutomo | 2025-07-03