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Homework #26

# Homework #26 - U4 «toms HW#26 Key Table—Caro up 15.33...

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Unformatted text preview: U4 «toms HW #26 Key Table—Caro up 15.33 The 3D-kg box is sliding down the smooth surface at ] mfs when it is in position 1. Determine the {mile of the hox‘s wslooit}r at position 2 in each case. \$3011.": Problem 15.33 if the coofﬁcient of kinetic friction between the box and the inclined surface is pk = 2 {H} {b} (w s3 w ﬂéwwww a- 142:5 n 1 '2 : t2 FL. :— N f—ra "L D 'L 3(')¥Z‘W#E—F§r~' =J50U; 5mm 3 I F014, 1 :71 J (33% L u] F 1 — 1 3o "LI-L 1F AL-TO, 9M if (it) on“ lore some ytm’bdt CW4. 15.35 in case [a], a 5-": ball is released from rest at position 1 and falls to position 2. in case (b), the ball is released from rest at position 1 and swings to position 2. For each case, use the principle ofwork and energy' to determine the magnitude of the hall's 1rciocity at position 2. [In case {In}, notice that the force exerted on the ball by the string is perpendicular to the hall's path] 6 . _ ﬂJIHL 4- moirng . L aggﬂw LIP M5} :5 [ELF ISAE The mass of the rocket is 25D kg, its engine has a constant thrust of 45 MN. The length of the launching ramp is It] m. If the magnitude efthe meket‘s velocity when it reaches the end of the ramp is 52 mfs. how much war]: is dene en the rocket by friction and aerymie drag? 15.64 Th: 4-kg collar is roloasod from rest in position 1 on o smogh bar. The spring constant is k = 4 kNIm. The tension in the spring in position 2 is 500 N. What is the vo‘lo‘ﬁiiy of the collar when it has fallen to position 2? @ ’5— !) r- =Swsc )Léa =4E‘iga S r‘HE'SMM M95. Jir >fﬂ“j E? f-t-U : ...
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