Question

3. The sum of gravitational potential energy and kinetic energy is called mechanical

energy. Use Figure 2 to find the mechanical energy of an idealized pendulum at a
variety of times in its cycle. Identify any pattern you notice in the values of
mechanical energy.
Pls helpp

Answer 1

Step-by-step explanation:

Mechanical energy = Kinetic energy + Potential energy

We shall calculate mechanical energy at different points of time .

Time Kinetic energy Potential energy mechanical energy

0 0 4 4

2 2 2 4

4 4 0 4

6 2 2 4

8 0 4 4

10 2 2 4

and so on ........

Hence we see that total mechanical energy is constant at the value of 4

at all time .