Question

A 1-kg rock is suspended by a massless string
from one end of a 1-m measuring stick. What is
the weight of the measuring stick if it is balanced
by a support force at the 0.25 m mark?

(1) 0.25 kg
(3) 1.0 kg
(2) 0.5 kg
(4) 2.0 kg​

Answer 1

Answer:

3.) 1.0 kg:(...............)