Question

3. The gear with a radius of 1 inch shown below starts from rest. The angular position of point P is given by: 0 = 2t? - t, where 0 is in radians and t in seconds. The magnitude of the acceleration of point P when t=1 second is: (10 pts) Р A) 4 in/s2 B) 5 rad/s2 C) 9 in/ sa D) 6.32 in/s? E) None of the Above ллллля T +0 D

Answer 1

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Given- rodius, r= 1inch 0=2t² t Angular velocity, w do - d(2t-t) dt do - W = 4t-1 dt Angular acceleration, a = d²0 = dw=d146-1) dt² at dt d²0 = d = 4 rad dt? Bec 2. were know that - acceleration = d xx accele sation, a = 4x1 inch 32. a=4 in/2 option - a' is correct