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?

asked by ashley

11 years ago

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1 answer

1) ma=T-mg
T=m(a+g)
2) a=0
=>
0=T-mg
T=mg

answered by Elena

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Question

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

1) ma=T-mg
T=m(a+g)
2) a=0
=>
0=T-mg
T=mg

Ask a New Question or answer this question.

Elena · Answer

1) ma=T-mg T=m(a+g) 2) a=0 => 0=T-mg T=mg