The path of motion of a 8-lb particle in the horizontal plane is described in terms of polar coordinates as r = (3 t + 2)ft and θ = (0.4 t2 − t) rad, where t is in seconds. Determine the magnitude of the unbalanced force acting on the particle when t = 3 s . Express your answer to three significant figures and include the appropriate units.
The path of motion of a 8-lb particle in the horizontal plane is described in terms of polar coordinates as r = (3 t + 2)ft and θ = (0.4 t2 − t) rad, where t is in seconds. Determine the magnitude of the unbalanced force acting on the particle when t = 3 s . Express your answer to three significant figures and include the appropriate units.
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This is NOW my fourth time asking this SAME question, and NO ONE has answerd is correct so far.... Whats going on??
The path of motion of a 8-lb particle in the horizontal plane is described in terms of polar coordinates as r = (3 t + 2)ft and θ = (0.4 t2 − t) rad, where t is in seconds.
Determine the magnitude of the unbalanced force acting on the particle when t = 3 s .
Express your answer to three significant figures and include the appropriate units.
THE ANSWER IS NOT 70.4 or 220.64 lb
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