n FCI 18*: An elevator is being lifted up at a
constant speed. (Ignore friction and air
resistance)
A. The upward force on the elevator
by the cable is greater than
the downward force of gravity.
B. The amount of upward force
on the elevator by the cable equals
the downward force of gravity.
C. The upward force on the elevator
by the cable is less than
the downward force of gravity.
D. It goes up because the cable is being
shortened, not because of the force being
exerted by the cable on the elevator.
E. The upward force on the elevator
by the cable is greater than the downward force
due to the combined effects of air pressure
and the force of gravity.
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