Problemas
Answer the question below. Assuming you have average strength (say, F=6500 Newtons) can you lift (or move a distance)a 160 kg object with your bare hands?If not, what will you do to lift it? Can you do 1600 Joules of work on it?Elaborate your answer.
Roztwór
Gerardo
experto · Tutor durante 3 años
4.4
(223 Votos)
Respuesta
To determine if you can lift a 160 kg object with your bare hands, we need to consider the force required to lift it. The gravitational force acting on the object is given by:
where
is the mass of the object and
is the acceleration due to gravity.
Since your average strength is
, which is greater than
, you can lift the object with your bare hands.Next, to determine if you can do 1600 Joules of work on it, we use the formula for work:
where
is the work done,
is the force applied, and
is the distance over which the force is applied. If you apply a force equal to the gravitational force (1568 N) to lift the object vertically, you can calculate the distance
needed to perform 1600 Joules of work:
Therefore, you can do 1600 Joules of work on the object by lifting it approximately 1.02 meters vertically.