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Q1. Two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 N. If one person applies an upward force equivalent to 60 N at one end, at what point does the other person lift? Start with a free body diagram of the board.

Q2. A young boy swings the yo-yo horizontally above his head at the angular acceleration of 0.34 rad/s^2. If the tangential acceleration of a yo-yo at the end of the string is 0.19 m/s^2, how long is the string?

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