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**1.**

picture of problem:

http://img.photobucket.com/albums/v223/lilaznbabe/4_56.gif [Broken]

(a) What minimum force F is needed to lift the piano (mass M) using the pulley apparatus shown in Fig. 4-56? (Enter your answers in terms of some multiple of Mg.)

____ Mg (I got .5)

(b) Determine the tension in each section of rope: FT1, FT2, FT3, and FT4.

Tension in FT1?

____ Mg (I got .5)

Tension in FT2?

____ Mg (I got .5)

Tension in FT3?

____ Mg

Tension in FT4?

____ Mg (I got 1)

ok so i only need help on FT3...

thanks!

picture of problem:

http://img.photobucket.com/albums/v223/lilaznbabe/4_56.gif [Broken]

(a) What minimum force F is needed to lift the piano (mass M) using the pulley apparatus shown in Fig. 4-56? (Enter your answers in terms of some multiple of Mg.)

____ Mg (I got .5)

(b) Determine the tension in each section of rope: FT1, FT2, FT3, and FT4.

Tension in FT1?

____ Mg (I got .5)

Tension in FT2?

____ Mg (I got .5)

Tension in FT3?

____ Mg

Tension in FT4?

____ Mg (I got 1)

ok so i only need help on FT3...

thanks!

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