CORRECTION FOR #1 ANSWER BELOW: v=13.3 m/s NOT what's written there!!!

This is what I have so far. All that's missing is the Python Code!! Please provide code with output

Bubba (m 80 kg) is working construction on a third-floor scaffolding (h = 9 m). He wants to get down to the ground floor. One quick way of getting down is to step off the scaffolding. Another (maybe slower) way is to grab a nearby rope, which goes over a frictionless pulley on the 5th floor and down to a barrel full of trash on the ground. The barrel full of trash has a mass mb = 60 kg, so it will go up as Bubba comes down. Bubba (m 80 kg) is working construction on a third-floor scaffolding (h = 9 m). He wants to get down to the ground floor. One quick way of getting down is to step off the scaffolding. Another (maybe slower) way is to grab a nearby rope, which goes over a frictionless pulley on the 5th floor and down to a barrel full of trash on the ground. The barrel full of trash has a mass mb = 60 kg, so it will go up as Bubba comes down