A benji jumper weighs 55 kg. It will be thrown on an elastic rope that vibrates with a frequency of 0.5 times per second, with an amplitude of 0.75 meters.

1.- What is the velocity when it passes through the equilibrium point?

2.- What is its speed when it is 0.20 meters from the equilibrium point?

3.- What is the total energy of the system?

4.- What is the equation that describes the motion (Consider t = 0; X was a maximum)?

5.- if the string were modeled as a spring... What would its constant be?