Question

The fulcrum of a uniform 20kg seesaw that is 4.0 m long is located 2.5 m from one end. A 36-kg child sits on the long end.

Determine the mass a person at the other end would have to be in order to balance the seesaw.

Please explain

Answer #1

Q 1. Suppose two children are using a uniform seesaw that is
3.00 m long and pivoted at 2 m from the left edge, and a 30.0 kg
child sits 1.40 m from the center of mass of the seesaw.
a. Calculate where the second 18.0 kg child must sit
to balance the seesaw ?.
b. How far will the child be from the center of mass of the
seesaw ?
c. How far will the child be from the...

hree children are trying to balance on a seesaw, which consists
of a fulcrum rock, acting as a pivot at the center, and a very
light board 4.2 m long. Two playmates are already on either end.
Boy A has a mass of 45 kg, and boy B a mass of 35 kg.
Where should girl C, whose mass is 25 kg, place herself so as to
balance the seesaw?

A 79 kg adult sits at one end of a 7.1 m long board. His 27 kg
child sits on the other end. A) Where should the pivot be placed so
that the board is balanced, ignoring the board's mass?B) Find the
pivot point if the board is uniform and has a mass of 13 kg .

A 66 kg adult sits at one end of a 9.2 m long board. His 29 kg
child sits on the other end.
A) Where should the pivot be placed so that the board is
balanced, ignoring the board's mass?
B) Find the pivot point if the board is uniform and has a mass
of 17 kg .

A 73 kg adult sits at one end of a 10.5 m long board. His 33 kg
child sits on the other end. (a) Where should the pivot be placed
so that the board is balanced, ignoring the board's mass?
Incorrect: Your answer is incorrect. . m (measured from the adult)
(b) Find the pivot point if the board is uniform and has a mass of
15 kg. m (measured from the adult)

A meter stick is balanced on a fulcrum located at 0.50 m. A
spring scale is hung from the meter stick at 0.90 m and a
counterbalance is hung at 0.10 m so that the meter stick is level.
If a mass of 125 grams is hung at the 0.35 m position on the meter
stick, what force do you have pull on the spring scale in order to
make the meter stick level? ANSWER: 0.46N. Please explain/show
work.

Two movers are carrying a 4.0 m long sofa with a uniform
distribution of mass along its entire length. One of them is
standing all the way at one end, and provides a 350 N upward
vertical force F1. The other is standing halfway between the
midpoint and the other end. Fg is in the center! a. What is the
force F2 needed at this location to prevent the sofa from rotating?
b. What is the mass of the sofa?

An 88 kg person stands on a uniform 5.6 kg ladder that is 4.0 m
long, as shown in the figure(Figure 1). The floor is rough; hence,
it exerts both a normal force, f1, and a frictional force, f2, on
the ladder. The wall, on the other hand, is frictionless; it exerts
only a normal force, f3.
Using the dimensions given in the figure, find the magnitudes of
f1, f2, and f3.

A uniform, 254-N rod that is 1.89 m long carries a 225-N weight
at its right end and an unknown weight W toward the left end (see
the figure (Figure 1)). When W is placed 42.0 cm from the left end
of the rod, the system just balances horizontally when the fulcrum
is located 69.2 cm from the right end.
A) Find W.
B) If W is now moved 29.3 cm to the right, how far must the
fulcrum be...

A 60kg man and 40kg woman climbed atop a 4 m
seesaw,
(a) If the pair sit at either end of the seesaw, which
side will the seesaw tilt?
(b) Which way will it tilt if the woman moves 1 m toward
the center?
(c) From her original location, where would she have to
move to balance the see-saw?
I already asked this question and the explanation was unclear...
please help and explain

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