Find the magnitude of the friction force
A grinding wheel of radius 0.390 m rotating on a frictionless axle is brought to rest by applying a constant friction force tangential to its rim. The constant torque produced by this force is 85.6 N · m. Find the magnitude of the friction force.
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A grinding wheel of radius 0.390 m rotating on a frictionless axle is brought to rest by applying a constant friction force tangential to its rim. The constant torque produced by this force is 85.6 N · m. Find the magnitude of the friction
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A particle's trajectory is described by x = (1/2*t^3 - 2*t^2) m and y = (1/2*t^2 - 2*t) m, where t is in s. What is the particle's direction of motion, measured as an angle from the x-axis, at t = 0 s? What is the particle's direction of motion, m
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