Answer:
m = f*r / (9.8*r + 4)
Explanation:
Given
f = (m*g) + (m*v²/r)
⇒ f = m*(g + (v²/r)) = (m/r)*(g*r + v²)
⇒ m = f*r / (g*r + v²)
⇒ m = f*r / (9.8*r + 2²)
⇒ m = f*r / (9.8*r + 4)
To develop this problem it is necessary to apply the work theorem. This tells us that the energy on a body is equivalent to the product between the Force applied on it and the distance traveled. The vector product of these measures can be expressed as
And its magnitude is equivalent to
Where 
is the angle formed between the applied force and the line of displacement of the body.
Our values are given as,
Applying this value and replacing we have,
Therefore the work done by the truck is 1.299 Mega Jules
Explanation:
In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors. Common types of potential energy include the gravitational potential energy of an object that depends on its mass and its distance from the center of mass of another object, the elastic potential energy of an extended spring, and the electric potential energy of an electric charge in an electric field. The battery is storing the energy but give it something to power and it'll give its energy to the object and a violin strings are like ruber band and if you play the violin it releases a new type of energy sound energy.
D Largemouth bass I did this one
