Question

If at the highest point in the pendulum swing a 1.46 kg object was 2.54 meters off of the ground,what would the KINETIC ENERGY be at the lowest point in the pendulum’s swing?

Answer 1

36.38 Joules

Step-by-step explanation:

At the highest point, all the energy of the pendulum system will be Gravitational potential energy =mgh= (mass)*(acceleration due to gravity)* (height) 1.46*9.81*2.54=36.38 J of energy.

Within a closed isolated system, meaning no net external force, the total energy is conserved and Gravitational potential energy will be converted to kinetic energy. At the lowest point, all the Energy will be kinetic energy.

Therefore, KE at the lowest point = GPE at the highest point = 36.38 joules.