The problem that follow involve straight-line motion. The time t is in seconds unless otherwise stated.
Problem
At the instant shown, r= 3 m and θ = 30°. The cartesian components of the velocity of point A are vx = 2 m/s and vy = 8 m/s.
(a) Determine the velocity of point A in terms of polar coordinates.
(b) What is the angular velocity dθ/dt of the crane at the instant shown?
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