#4. A mass of 1.00 kg is sitting 10 m in the air above a springof spring constant k=50 N/m. The mass is released and lands on thespring compressing it by a distance indicated by yf
a) What is the TE of this system?
b) What is the KE of the mass just as it makes contact with thespring?
c) What is the position of maximum compress (yf)?
#5. A 3.0 kg mass is sitting on a table attached by a stringover a pulley to a 30 kg mass hanging off the table. Thecoefficient of friction between the mass on the table and the tableis (mk=0.2). The mass hanging off the table falls 1m.
a) What is the change in PE for each mass?
b) How much work is done by friction?
c) What is the final KE for the entire system and what is thefinal velocity?
