Answer:
Force applied by bull dozer is 3333.33 joules.
Explanation:
The mass of the bat is approximately 1.56 kg. We can use the principle of moments to solve this problem. According to the principle of moments, the sum of the moments of all the forces acting on an object is equal to zero, assuming that the object is in equilibrium.
Let's assume that the bat has a mass of m kg and its center of mass is located at a distance of x cm from the end of the bat where the glove is attached. We can then write the following equation for the moments:
mx = (m+0.542)(x+74.8-25.9)
Here, the left-hand side represents the moment of the bat about the point where the glove is attached, and the right-hand side represents the moment of the bat and the glove about the same point. We have added the distance between the center of mass of the bat and the point where the glove is attached (74.8 cm) to the distance between the glove and the point where the glove is attached (-25.9 cm) to get the total distance between the center of mass of the combined system and the point where the glove is attached.
Simplifying the equation, we get:
m*x = (m+0.542)*48.9
Expanding the brackets, we get:
mx = 48.9m + 26.56
Rearranging and solving for m, we get:
m = 0.542*74.8/(-25.9) = 1.56 kg
Therefore, the mass of the bat is approximately 1.56 kg.
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The gravitational potential energy of an object Is always measured relative to the height of the object. It has the equation equal to mass PE = mgh where PE is the potential energy, m is the mass of the object, H is the height of the object and g is the acceleration due to gravity.
The gravitational potential of an object is always measured relative to reference level/another point
Energy is the ability to do work. Energy can change from one energy to another
Gravitational potential energy is the energy that an object has because of its position
The potential energy can be formulated:
Ep = m. g. h
E = potential energy of an object, joule
m = object mass, kg
g = gravity acceleration, m / s2
h = height of an object, m
The higher the object from the surface of the earth and the greater the mass, the greater the potential energy of the object. Earth's gravity also affects the potential energy of objects
Potential energy itself includes mechanical energy
Em = Ek + Ep
Em = mechanical energy
Ek = kinetic energy
Ep = potential energy
The amount of kinetic energy and potential energy of objects is always constant
Determine how potential and kinetic energy changes at each position of the pendulum
Determine the mechanical energy
the potential of an object when it falls from a height
the gravitational potential energy between moon and earth
Keywords: the potential energy, kinetic energy, mechanical energy
The answer is that it is lower because it is harder to get something to move than to make it continue moving due to molecular interactions and inertia.