32. Review. A window washer pulls a rubber squeegee down a very tall vertical window. The squeegee has mass 160 g and is

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32 Review A Window Washer Pulls A Rubber Squeegee Down A Very Tall Vertical Window The Squeegee Has Mass 160 G And Is 1 (596.32 KiB) Viewed 31 times

32. Review. A window washer pulls a rubber squeegee down a very tall vertical window. The squeegee has mass 160 g and is mounted on the end of a light rod. The coefficient of kinetic friction between the squeegee and the dry glass is 0.900. The window washer presses it against the window with a force having a horizontal component of 4.00 N. (a) If she pulls the squeegee down the window at constant veloc- ity, what vertical force component must she exert? (b) The window washer increases the downward force component by 25.0%, while all other forces remain the same. Find the squeegee's acceleration in this situation. (c) The squeegee is moved into a wet portion of the window, where its motion is resisted by a fluid drag force R proportional to its veloc- ity according to R = -20.0v, where R is in newtons and v is in meters per second. Find the terminal velocity that the squeegee approaches, assuming the window washer exerts the same force described in part (b).