Question

Four ropes each attached to the end of a freight elevator are used to pull the small elevator upward through a wide elevator shaft of the forces list below which act upon the elevator

Answer 1

These options are missing in the question

(a) Normal force

(b) Gravity force

(c) Applied force

(d) Friction force

(e) Tension force

(f) Air tension

Answer:

(b) Gravity force

(e) Tension force

(f) Air resistance

Step-by-step explanation:

Normal force: NO, Normal force acts when body surfaces are in contact to push each other since lift is hanging and no surface contact is there so no Normal force.

Gravity force: YES. This force is acted on each and every body that lies in the vicinity of earth's gravitational field, as the life is hanging so it will experience Gravity force.

Applied force: NO.as there is no force given to the Elevator.

Friction force: NO. Friction fore occurs when bodies rub against each other or has a surface of contact, lift do not touch any surface hence no Frictional force.

Tension force: YES. The Elevator is hanging with the support of Four ropes and tension is acting in these ropes.

Air resistance: YES. The Elevator will experience Air resistance as it will move through the wide shaft.