The total energy of the pendulum pictured in the diagram is 2.4 Joules. Determine the kinetic energy (KE) at Position C (ENTER NUMERICAL VALUE ONLY-do not put the unit)
In a pendulum, the potential energy and kinetic energy are interchanged as the pendulum swings back and forth. At the highest point (position A), all the energy is in the form of potential energy. At the lowest point (position C), all the energy is in the form of kinetic energy.
Since the total energy of the pendulum is 2.4 Joules, the kinetic energy at position C is also 2.4 Joules.
To determine the kinetic energy (KE) at Position C, we need to know the potential energy (PE) at that position as well. The total energy (TE) of the pendulum is the sum of kinetic energy (KE) and potential energy (PE).
TE = KE + PE
Given that the total energy (TE) is 2.4 Joules, we can write the equation as:
2.4 J = KE + PE
Since the pendulum is at Position C, which is the highest point of its swing, all the potential energy (PE) is converted to kinetic energy (KE). At this point, the potential energy is zero. Therefore, the equation simplifies to:
2.4 J = KE + 0
So, the kinetic energy (KE) at Position C is 2.4 Joules.