1) ma=T-mg
T=m(a+g)
2) a=0
=>
0=T-mg
T=mg
A rescue helicopter is lifting a man (weight = 925 N) from a capsized boat by means of a cable and harness. (a) What is the tension in the cable when the man is given an initial upward acceleration of 2.59 m/s2? (b) What is the tension during the remainder of the rescue when he is pulled upward at a constant velocity?
1 answer