An 800-n billboard worker stands on a 4.0-m scaffold weighing 500 n and supported by vertical ropes at each end. how far would the worker stand from one of the supporting ropes to produce a tension of 550 n in that rope

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)