Answer:
People might misunderstand it and problems might happen because the audience will have different opinions.
Explanation:
You divide 120 and 72 and get 1.67 repeated i think
The displacement, time, and direction
Answer:
maximum speed of the elevator is 6.54 m/s
Explanation:
given,
force exerted on the elevator is 1.59 times passenger weight.
when the elevator accelerates upward with rate of a.
total force
F = m × (a+g)
1.59× mg = ma + mg
0.59 mg = ma
a = 0.59 g
we also have that
=
= 6.54 m/s
maximum speed of the elevator is 6.54 m/s
Efficiency or
is calculated by formula:
where
also efficiency has no unit.
Now put in the data and calculate the efficiency.

The efficiency of the machine is 0.8
If you want to get percentage just multiply by 100 and you get 80%
Hope this helps.
r3t40