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The figure shows a 6 kg block being pulled along a frictionless floor by a cord that applies a force of constant magnitude 15 N but with an angle 0(t) that varies with time. When angle 0 = 23°, at
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what rate is the block's acceleration changing if (a)e(t) = (4 x 10-2 deg/s)t and (b)8(t) = (-3 x 102 deg/s)t ? (Hint: Switch to radians.)
(a) Number
Units
(b) Number
Units

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