To start her lawn mower, Julie pulls on a cord that is wrapped around a pulley. The pulley has a moment of inertia about its central axis of I = 0.570kg⋅m2 and a radius of 6.00cm . There is an equivalent frictional torque impeding her pull of τf = 0.500m⋅N .

Part A: To accelerate the pulley at α = 4.40rad/s2 , how much torque does Julie need to apply to the pulley?

Part B: How much tension must the rope exert?