Question

using the image of the pendulum identify where each of the following occur.
highest kinetic energy
highest pe
p.e = k.e

Explanation:

Step1: Analyze potential energy (PE)

Potential energy is related to height. The higher the pendulum bob, the greater the PE. So the highest PE is at the extreme positions (1 and 5).

Step2: Analyze kinetic energy (KE)

Kinetic energy is related to speed. The pendulum bob has the highest speed at the lowest point (position 3), so highest KE is at 3.

Step3: Analyze when \(PE = KE\)

At positions 2 and 4, the pendulum bob has both significant height (for some PE) and speed (for some KE), so \(PE = KE\) at 2 and 4.

Answer:

Highest PE: 1 and 5; Highest Kinetic Energy: 3; \(PE = KE\): 2 and 4.