A box has a mass of 3 kg. The box is lifted from the floor and placed on a shelf. If the box gains a Potential Energy of 100 J, then h

Question

A box has a mass of 3 kg. The box is lifted from the floor and placed
on a shelf. If the box gains a Potential Energy of 100 J, then how high
is the shelf?
a 2.34 m
b 1.20 m
C 1.50 m
d 3.40 m
HALP

in progress 0
Mộc Miên 4 years 2021-08-08T11:26:23+00:00 1 Answers 79 views 0

Answers ( )

  1. thienthanh
    0
    2021-08-08T11:28:18+00:00
    Reply

    Explanation:

    Potential energy=MGH

    100=3×10×H.

    H=100/30

    H=3.40m

Leave an answer

Browse

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