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Sagot :
Answer:
a) Ua> Ub, b) Em = K + U
Explanation:
A swing is an oscillatory system, which goes from the highest point of the trajectory to the lowest point and then continues to the highest point on the other side, with a curved trajectory.
Suppose point A is the highest point and point A the lowest point, as the potential energy is given by the formula
U = m g h
if we define a reference system where the lowest point corresponds to y = or at this point the power energy is zero, therefore
Ua> Ub
in this movement the mechanical or total energy of the system remains constant, therefore it can be written
Em = K + U
therefore at the highest point the mechanical energy is only potential and at the lowest point it is only kinetic and at the intermediate points it has a part of each, but the value of the mechanical energy is constant and does not change.
Answer:
At which position, A or B, is the potential energy of the swing the greatest?
b
As the swing moves from point B to point A, which form of energy is increasing, kinetic or potential?
kinetic
Explanation:
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