If you want to catch the person who falls off the cliff, you must ensure that the initial speed of the person who jumps after is large enough, so that you can catch up with the first person in the air. Therefore, when you jump, someone will either throw the person down or wait for the cliff to jump, but the first person may fall before starting.
Theoretically, it is possible, but it depends on the courage and reaction speed of the people behind.
Whether you use strength or not, you need to have enough muscles and strength in your upper and lower limbs at the beginning or after you catch someone, otherwise you will never be able to use this kind of ladder.