# I need help with these 2 please!! motion of the block of wood? a)5.0% b) 1.0%...

###### Question:

i need help with these 2 please!!
motion of the block of wood? a)5.0% b) 1.0% c)0.12% d) 0.08% e)0.01% M,R, I 7. A mass of 1 kg hangs from a pulley (1MR2, M-3 kg, R-0.2 m) as shown. The pulley is at rest initially. What is the downward speed of the hanging mass when it has fallen 0.5 m? a) 1.30 m/s b) 1.39 m/sc)1.45 m/s 4 7 NA d) 1.74 m/s e)2.13 m/s
13. A merry go round (a disk I^MR2, M-500 kg, R-2 m) rotates initially at 1.1 rad/s. A high school boy with a mass of 90 kg runs parallel to the edge of the rotating merry go round (in the same direction as it is turning) and jump:s onto the edge of the merry go round As he jumps onto the merry go round his speed is 7 m/s. How fast is the boy moving once he and the merry go round are moving together? a)1.08 m/s b) 1.29 m/s c)1.74 m/s d) 2.31 m/s e) 3.47 m/s

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