Problem 4.23 - a l = d/dt(2.5t = 2.5 f/s 2 This is the...

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Problem 4.23 If the velocity varies linearly from base to tip, then the velocity at the midpoint would be V at midpoint = (1t + 4t)/2 = 2.5t Since local acceleration (a l ) is dV/dt, then we want to evaluate d/dt(2.5t) at t = 2s.
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Unformatted text preview: a l = d/dt(2.5t) = 2.5 f/s 2 . This is the answer. (It holds at all times, not just at 2s, because it turns out to be a constant.)...
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