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The wheels of a bus accelerating from rest acquire an angular vclocity of 600 in 2.0 seconds. The diameter of the wheels is i meter. rpm a) What is the angular accelcration of the wheels? b) Determine tine number of revolutions made the wheeis in this ime, and the by distance the bus has travelcd. 3. A uniform disk of radius .25 m and mass 5 kg is mounted on an axle supported in fixed frictionless bearings. A light cord is wrapped around the rim of the wheel and a steady downward pull of 25 N is exerted on the cord. Find the tangential acceleration of a point on the rim I i M R

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The equation to determine the value of acceleration is, 2MRα= R(25) MR2 -= R(25) 2 R (5)a= (25) 10 m/s

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