Apendulum has 665 j of potential energy at the highest point of its swing. how much kinetic energy will it have at the bottom of its swing

Kinetic energy, K.E = 665 J

Explanation :

A pendulum has 665 J of potential energy at the highest point of its swing. The total energy remains conserved in a pendulum.

At the highest point, the pendulum has maximum potential energy and zero kinetic energy. As it reaches downwards, the potential energy is converted to kinetic energy.

At the lowest point, it has maximum kinetic energy and zero potential energy.

In this case, the kinetic energy at the bottom of its swing will be 665 J.

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

there are no correct statementd on the list of choices you provided.