PHYSICS 12 people are on the elevator to a height of 120 m. The average mass per person is 50 kg. What work does the lift engine do?​

Question

PHYSICS
12 people are on the elevator to a height of 120 m. The average mass per person is 50 kg. What work does the lift engine do?​

in progress 0
Nem 2 months 2021-07-26T17:51:08+00:00 1 Answers 2 views 0

Answers ( )

    0
    2021-07-26T17:52:37+00:00

    Answer:

    720000 J

    Step-by-step explanation:

    The formula is

    Work = Force * Distance

    Here we have the weight force, which is calculated as w = m * g

    acceleration of gravity (g) ≈ 10 m/s

    people’s mass (m) = 12 * 50 kg = 600 kg

    So Force = 10 m/s * 600 kg = 6000 N

    Distance = 120 m

    Work = Force * Distance = 6000 N * 120 m = 720000 J = 720 kJ

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )