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2 Block A with mass m is lifted using the motor and pulley system shown. For point B on the cable VB = 0 at
2 Block A with mass m is lifted using the motor and pulley system shown. For point B on the cable VB = 0 at t=0. SB Power to the motor is increased such that UB = B where B is a positive constant. B a) Draw the free body diagram for A b) Write the equation of motion for block A C) Write the compatibility equation between SA and SB. d) What is the tension in the cable at t=5 seconds. Punnus A, jonka massa on m, nostetaan kayttaen SA moottoria ja koytta kuvan mukaisesti. Koyden pisteessa B hetkella t=0 patee VB = 0. Moottorin tehoa nostetaan niin, A etta VB = B, missa B on positiivinen vakio. a) Piirra vapaakappalekuva punnukselle A. b) Kirjoita liikeyhtalo punnukselle A. C) Kirjoita lauseke SAin ja SBin valille. d) Mika on koydessa vaikuttava voima hetkella t=5 sekuntia
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