The kinetic energy of an object is given by:
Kinetic energy = 1/2 * mass * velocity²
If the kinetic energy of the pendulum at the top of its swing is 0, then this tells us that the velocity of the pendulum at that point is 0. All of the kinetic energy is converted to potential energy, and the pendulum starts moving in the opposite direction after this point in time.
If this is for edge, the answer should be b.
Hope this helps!
The head lamp has a balanced force.
The book has a balanced force.
The car has a balanced force.
The clock doesn't have a balanced force.
The ball has a balanced force.
The bicycle doesn't have a balanced force.
The air jet has a balanced force.
The boat doesn't have a balanced force.
The teddy bear doesn't have a balanced force.
The Proterozoic division of the geological time scale is an era of the Phanerozoic eon. The Proterozoic division began 2.5 billion years ago and ended 542.0 million years ago.