<span>The acceleration of the bullet is called ACTION.
</span>Formally stated, Newton's third law<span> is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.
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The same bird on the tree has more gravitational potential energy. This is because it is at a higher distance from the ground as it is on the tree, than when it is on the ground.
Considering also the formula for Gravitational Potential Energy GPE = mgh
For the bird on the ground, h =0, therefore GPE = m*9.8*0 = 0
For that on the tree = mgh = m*9.8*h
Of course the one on the tree has a value greater than zero.
Answer:896 N
Explanation:
Given
mass of bullet 
Length of barrel 
final velocity 
initial velocity 
Work done by all the forces is equal to change in kinetic Energy




These rocks can be any of the following listed but they cannot be solid aa lava. This is because solid aa lava would not be smooth, rounded rocks and would not be scattered on the ground.